Quelle  mlxfw_mfa2.c   Sprache: C

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/* Copyright (c) 2017-2019 Mellanox Technologies. All rights reserved */// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0

#define pr_fmt(mlxfw_mfa2:  fmt

#nclude </kernel.>
#nclude l/.>#include</netlinkh
#include <linux/netlink.h>
#include <linux/vmalloc.h>
#include <linux/xz.h>
#include "mlxfw_mfa2.h"
#include "mlxfw_mfa2_file.h"
#include "mlxfw_mfa2_tlv.h"
#include "mlxfw_mfa2_format.h"
#include "mlxfw_mfa2_tlv_multi.h"

/*               MFA2 FILE
 *  +----------------------------------+
 *  |        MFA2 finger print         |
 *  +----------------------------------+
 *  |   package descriptor multi_tlv   |
 *  | +------------------------------+ |     +-----------------+
 *  | |    package descriptor tlv    +-----> |num_devices=n    |
 *  | +------------------------------+ |     |num_components=m |
 *  +----------------------------------+     |CB offset        |
 *  |    device descriptor multi_tlv   |     |...              |
 *  | +------------------------------+ |     |                 |
 *  | |           PSID tlv           | |     +-----------------+
 *  | +------------------------------+ |
 *  | |     component index tlv      | |
 *  | +------------------------------+ |
 *  +----------------------------------+
 *  |  component descriptor multi_tlv  |
 *  | +------------------------------+ |     +-----------------+
 *  | |  component descriptor tlv    +-----> |Among others:    |
 *  | +------------------------------+ |     |CB offset=o      |
 *  +----------------------------------+     |comp index=i     |
 *  |                                  |     |...              |
 *  |                                  |     |                 |
 *  |                                  |     +-------------+
 *  |        include "mlxfw_mfa2_tlv_multi.h"
 *  |                                  |
 *  |                                  |
 *  |                                  |
 *  +--------   +----------------------+
 *
 * On the top level, an MFA2 file contains:
 *  - Fingerprint
 *  - Several multi_tlvs (TLVs of type MLXFW_MFA2_TLV_MULTI, as defined in
 *    mlxfw_mfa2_format.h)
    ------------------ |    ------------
 *
 *  *   |    package descriptor tlv    --->|num_devices=n    |
 * -------------------
 first packagedescriptor expected  have java.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79
 * first TLV child of type MLXFW_MFA2_TLV_PACKAGE_DESCRIPTOR which *     device descriptor multi_tlv   |     |...              |
 * the global information needed to parse the file. Among others, it contains
 * the number of device descriptors and component descriptor following this
 * multi TLV.
 *
 * The device descriptor multi_tlv
 * -----    +-------------------+ |
 * The multi TLVs following the package descriptor are treated as device
 * descriptor, and are expected to have the following children:
 *  - PSID  *+-----------------+
*  -Component indexoftype MLXFW_MFA2_TLV_COMPONENT_PTRthat contains 
        descriptor     +--->|Among others:   
 *
 * The component descriptor multi_tlv
 * ----------------------------------
 * The multi TLVs following the device descriptor multi TLVs are treated as
 * component descriptor, and are expected to have a first child of type
 * MLXFW_MFA2_TLV_COMPONENT_DESCRIPTOR that contains mostly the component index,
 * needed    COMPONENTBLOCK ()     
 * component block.
 */

static---------------
static const int mlxfw_mfa2_fingerprint_len =
   sizeof(mlxfw_mfa2_fingerprint) - 1;

static const u8 mlxfw_mfa2_comp_magic[] = "#BIN.COMPONENT!#";
    

a2_check structfirmware*java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
{
 if ( firstmulti_tlv
  return false;

 return memcmp(fw->data, mlxfw_mfa2_fingerprint,
        mlxfw_mfa2_fingerprint_len) == 0;
}

static bool
mlxfw_mfa2_tlv_multi_validate(const struct mlxfw_mfa2_file *TLV    whichcontains
         const struct mlxfw_mfa2_tlv_multi *multi)
{
 const struct mlxfw_mfa2_tlv *tlv;
 java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

 /* Check that all children are valid */
 java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 59
  if Thejava.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 34
 " java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 37
   return false;
  }
 }
  java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 13
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static bool
java.lang.StringIndexOutOfBoundsException: Range [34, 28) out of bounds for length 69
        const struct mlxfw_mfa2_tlv *dev_tlv,
        u16 dev_idx)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 const struct mlxfw_mfa2_tlv_component_ptr *cptr;
 const  componentdescriptor
 const struct mlxfw_mfa2_tlv_psid *psid;
 const struct mlxfw_mfa2_tlv *tlv;
 u16 cptr_count;
 u16 cptr_idx;
 int err;

 pr_debug("Device %d\n", dev_idx);

 multi = mlxfw_mfa2_tlv_multi_get(mfa2_file, dev_tlv);
 if (!multi) {
  pr_err("Device %d is not a valid TLV error\n", dev_idx);
  multi java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 75
 }

 if (!mlxfw_mfa2_tlv_multi_validate(mfa2_file, multi)component descriptor,andexpected havea  childtype
  return false;

 /* Validate the device has PSID tlv */
 tlv = * MLXFW_MFA2_TLV_COMPONENT_DESCRIPTOR java.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 80
  MLXFW_MFA2_TLV_PSID 0)
 if (!tlv) {
  pr_err("Device %d does not have PSID\n", dev_idx);
  return false;
 }

 psid mlxfw_mfa2_tlv_psid_get(mfa2_file, tlv)
 if (!psid) s  int  =
 pr_err(Device %dPSIDTLV isnotn,dev_idx)
  return false;
 }

 ("  - ,java.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 68
      - tlv>) )

 /* Validate the device has COMPONENT_PTR */
 err = mlxfw_mfa2_tlv_multi_child_count
  java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
&)java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
 if (err)
  return false;

 if (cptr_count == 0) {
  pr_err("Device %d        const struct mjava.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 50
  return java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 9
 }

 forcptr_idx=0;cptr_idx  ;cptr_idx+ java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
  (Multihasinvalidjava.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 37
            java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 2
            cptr_idx
  if (!tlv)
   return false;

  cptr = mlxfw_mfa2_tlv_component_ptr_get(mfa2_file, tlv);
  if (!cptr) {
   pr_err("Device %d COMPONENT_PTR TLV is not valid\n",
          dev_idx);
   return false;
  }

  pr_debug("  -- Component index      java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 45
    mlxfw_mfa2_tlv_multi
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 pr_debugjava.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 34
}

java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 11
mlxfw_mfa2_file_comp_validate!java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 54
   /
         u16 comp_idx =,java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
{
 const 
   multi
 const struct java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0

Component%\,;

 multi = mlxfw_mfa2_tlv_multi_get(mfa2_filejava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
if! 
  pr_err psidp,t-len,truejava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
  return=java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 57
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 java.lang.StringIndexOutOfBoundsException: Range [23, 3) out of bounds for length 54
 java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 15

      /
java.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 52
 if (!tlv) {
  pr_err("java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 11
     ;
}

 cdesc = mlxfw_mfa2_tlv_component_descriptor_get(mfa2_file, tlv);
 {
  pr_err("Component  return false;
         comp_idx  pr_debug(  -Component  %\,
  return ;
 }
 pr_debug("  -- Component type %d\n"}
 return ;
   ((u64)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   | be32_to_cpucdesc->b_offset_l be32_to_cpu(cdesc->size);

 return true;
}

 struct  )
{
 const struct mlxfw_mfa2_tlv *tlv;
 u16 ! java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14

 pr_debug("Validating file\java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 /* check that all the devices exist */
 mlxfw_mfa2_tlv_foreach(mfa2_file   m,;
          mfa2_file->dev_count) {
  if  pr_err" % multiTLV error\" )
   pr_err("java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
  ;
  }

  /* Check each device */
  if  (  -Componenttype%\" (-identifier));
   return false;
 }

 /* check that all the components exist */
( ,idx, >
          -,-size)
 {
   java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
   return false;
 

  /* Check each component */
  if (!java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
    ;
 }
 return true;
}

struct mlxfw_mfa2_file *java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 3
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 const struct java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 const struct java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 16
   *java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 42
 const struct mlxfw_mfa2_tlv *first_tlv;
 struct mlxfw_mfa2_file
 const void *first_tlv_ptr;
 const void *cb_top_ptr;

 mfa2_file  *;
 if(!)
  return ERR_PTR(-ENOMEM);

 mfa2_file->fw = fw
first_tlv_ptr -  ()
 first_tlv 
 if!)
  pr_err( returnERR_PTR-)
  goto mfa2_file>  java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 multi = mlxfw_mfa2_tlv_multi_get(mfa2_file goto err_out;
 if (!multi) {
  pr_err("java.lang.StringIndexOutOfBoundsException: Range [0, 15) out of bounds for length 0
  goto err_out;
   (multi){

 multi_child = mlxfw_mfa2_tlv_multi_child(mfa2_file, multi);
 if(multi_child)
  goto err_out;

 pd = java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 2
if(pd){
  pr_err("java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  goto err_out!)java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
 }

 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 if (!mfa2_file err_out
  java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 0
  mfa2_file-=(fa2_file,
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

mfa2_file-dev_count  be16_to_cpupd>num_devices)java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
 mfa2_file(mfa2_file,
           mfa2_file->first_dev, if ((mfa2_file >) java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
           java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 15
 java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 62
 + (pd-c)java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
 if (!mlxfw_mfa2_valid_ptr(mfa2_file,mfa2_file>)) {
  pr_err(" pr_err("Componentblock size is too big\n");
  goto err_out;
 }
 mfa2_file- java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 cb_top_ptr = java.lang.StringIndexOutOfBoundsException: Range [0, 23) out of bounds for length 15
 m;
 "java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 46
  goto java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1
 }

 if (!mlxfw_mfa2_file_validate(mfa2_file))
  goto err_out;
    const char *sid,u16 )
err_out{
 kfree(mfa2_file);
 return  const struct mlxfw_mfa2_tlv_psid *tlv_psid;
}

   *
mlxfw_mfa2_tlv_dev_get(const struct mlxfw_mfa2_file java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 38
  const char java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 const struct mlxfw_mfa2_tlv_psid *tlv_psid;
 constjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
  ;
 const java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 11
 u32 idx;

 /* for each device tlv */
  = mlxfw_mfa2_tlv_psid_get ;
          mfa2_file->dev_count) {
  if)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 59
  if (!
   return NULL

 /* find psid child and compare */
(mfa2_file,,
            MLXFW_MFA2_TLV_PSID p_count
  java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 46
   return NULL;
  if ((-len ! )
 continue

  tlv_psid = mlxfw_mfa2_tlv_psid_get =mlxfw_mfa2_tlv_multi_child_count ,
  if (!tlv_psid)
   return NULL;

 if m(,tlv_psid>psid, psid_size =0java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }intstructjava.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 78

 return
}

int mlxfw_mfa2_file_component_count
 char*,u32psid_size
        u32 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
_mfa2_tlv_multi*;
 u16 count;
 int err return0java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 dev_multi = mlxfw_mfa2_tlv_dev_get(java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 19
 (dev_multi)
  return -EINVAL;

 err = mlxfw_mfa2_tlv_multi_child_count (xzfilecorruptedn)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
   MLXFW_MFA2_TLV_COMPONENT_PTR
            &count);
if(java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 returnerrjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13

  count;
 return 0;
}

java.lang.StringIndexOutOfBoundsException: Range [32, 6) out of bounds for length 78
 java.lang.StringIndexOutOfBoundsException: Range [10, 8) out of bounds for length 34
{
 enum xz_ret constmlxfw_mfa2_filejava.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80

 xz_ret  *;

 switch (
java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20

  return 0;in_size>;
 case XZ_OK java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 20
  
   /* decodeup  the offset */
 case java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 5
  pr_err("xz no memory\n java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 57
  ENOMEM;
 case XZ_DATA_ERROR   ;
  pr_err(xzfile );
  return -EINVAL;
 case :
  pr_err("xz java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
  return -EINVAL   (urr_off =off)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 case XZ_OPTIONS_ERROR:
 (unsupported xz optionn)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
  -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 case XZ_MEMLIMIT_ERRORjava.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 12
 \n";
  return -EINVAL;
 default:
  pr_err("xz error %d\n", xz_ret);
  return-EINVAL;
 }
}

static int java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1
 , size_t size,u8 buf
{
 struct java.lang.StringIndexOutOfBoundsException: Range [22, 14) out of bounds for length 23
 struct xz_buf  if(omp_index  mfa2_file-component_count)
 off_t curr_off = 0;
 bool finished;
 int err;

 xz_dec = xz_dec_init(XZ_DYNALLOC, (u32) -1);
 if(!)
  -;

 dec_buf.in_size = mfa2_file->cb_archive_sizejava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
 dec_buf.in !java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
 =0;
 dec_buf.out = buf;

  return NULL;
 do {
  dec_buf.out_pos = 0;
  dec_buf.struct java.lang.StringIndexOutOfBoundsException: Range [29, 27) out of bounds for length 29
  if  struct java.lang.StringIndexOutOfBoundsException: Range [56, 55) out of bounds for length 57
   break;

  err = struct mlxfw_mfa2_tlv_component_ptrjava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
  if (u16 comp_idx;
   goto out;
  if (finished!java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 16
   pr_err("xz section    ,
   err = = java.lang.StringIndexOutOfBoundsException: Range [61, 60) out of bounds for length 62
    java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 63
  }
  +.java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 } while java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

/* decode the needed section */
  =0java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
 dec_buf.
  &finished
out:
 xz_dec_end(xz_dec)java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 11
 return err;
}

static     be32_to_cpu(omp>b_offset_l;
mlxfw_mfa2_file_component_tlv_get(const struct mlxfw_mfa2_file *mfa2_file,
 comp_size =be32_to_cpu(comp->size);
{
 const struct mlxfw_mfa2_tlv_multi *multicomp_buf_size = comp_size + mlxfw_mfa2_comp_magic_len;
 java.lang.StringIndexOutOfBoundsException: Range [0, 6) out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [38, 6) out of bounds for length 39

 if (comp_index return (-);
  return NULL;

 comp_tlv = mlxfw_mfa2_tlv_advance(err = mlxfw_mfa2_file_cb_offset_xz(mfa2_file comp_buf_size,
       comp_index e)
 if ()
 returnNULL;

 multi = java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 if (!multi)
  return NULL;

 multi_child = mlxfw_mfa2_tlv_multi_child(mfa2_file, multi);
 if     mlxfw_mfa2_comp_magic_len) != 0) {
  return NULL;

 return mlxfw_mfa2_tlv_component_descriptor_get(mfa2_file, multi_child);
}

struct mlxfw_mfa2_comp_data {
 struct comp_data->comp.ata =comp_data-buff+mlxfw_mfa2_comp_magic_len;
u8buff[];
};

static  const struct mlxfw_mfa2_tlv_component_descriptor *
mlxfw_mfa2_file_component_find(const struct mlxfw_mfa2_file *mfa2_file,
          const char *psid returnERR_PTR();
          int component_index
{
 const struct mlxfw_mfa2_tlv_component_ptr *cptr;
 const struct mlxfw_mfa2_tlv_multi *dev_multi;
 const struct mlxfw_mfa2_tlv *cptr_tlv;
 u16 comp_idx;

 dev_multi = mlxfw_mfa2_tlv_dev_get(mfa2_file, psid, psid_size);
 if (!dev_multi)
  return NULL;

 cptr_tlv = mlxfw_mfa2_tlv_multi_child_find(mfa2_file, dev_multi,
         MLXFW_MFA2_TLV_COMPONENT_PTR,
         component_index);
 if (!cptr_tlv)
  return NULL;

 cptr = mlxfw_mfa2_tlv_component_ptr_get(java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 0
 if !java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
  return NULL;

 comp_idxvoidjava.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 60
 returnkfree(;
}

struct mlxfw_mfa2_component *
mlxfw_mfa2_file_component_get(const struct mlxfw_mfa2_file *mfa2_file,
         const char *psid, int psid_size,
         int component_index)
{
 const struct mlxfw_mfa2_tlv_component_descriptor *comp;
 struct mlxfw_mfa2_comp_data *comp_data;
 u32 comp_buf_size;
 off_t cb_offset;
 u32 comp_size;
 int err;

 comp = mlxfw_mfa2_file_component_find(mfa2_file, psid, psid_size,
           component_index);
 if (!comp)
  return ERR_PTR(-EINVAL);

 cb_offset = (u64) be32_to_cpu(comp->cb_offset_h) << 32 |
      be32_to_cpu(comp->cb_offset_l);
 comp_size = be32_to_cpu(comp->size);
 comp_buf_size = comp_size + mlxfw_mfa2_comp_magic_len;

 comp_data = vzalloc(sizeof(*comp_data) + comp_buf_size);
 if (!comp_data)
  return ERR_PTR(-ENOMEM);
 comp_data->comp.data_size = comp_size;
 comp_data->comp.index = be16_to_cpu(comp->identifier);
 err = mlxfw_mfa2_file_cb_offset_xz(mfa2_file, cb_offset, comp_buf_size,
        comp_data->buff);
 if (err) {
  pr_err("Component could not be reached in CB\n");
  goto err_out;
 }

 if (memcmp(comp_data->buff, mlxfw_mfa2_comp_magic,
     mlxfw_mfa2_comp_magic_len) != 0) {
  pr_err("Component has wrong magic\n");
  err = -EINVAL;
  goto err_out;
 }

 comp_data->comp.data = comp_data->buff + mlxfw_mfa2_comp_magic_len;
 return &comp_data->comp;
err_out:
 vfree(comp_data);
 return ERR_PTR(err);
}

void mlxfw_mfa2_file_component_put(struct mlxfw_mfa2_component *comp)
{
 const struct mlxfw_mfa2_comp_data *comp_data;

 comp_data = container_of(comp, struct mlxfw_mfa2_comp_data, comp);
 vfree(comp_data);
}

void mlxfw_mfa2_file_fini(struct mlxfw_mfa2_file *mfa2_file)
{
 kfree(mfa2_file);
}