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iwlwifi: alloc memory dynamically also for DVM

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For old firmwares the memory wasn't allocated, resulting in panic.
Make it dynamically allocated as well. Allow any order of functions
call.

Fixes: eef187a7b8 ("iwlwifi: enlarge number of ucode sections")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Tested-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Sara Sharon 2017-01-30 12:34:32 +02:00 committed by Kalle Valo
parent 33e962c887
commit d546530e56
1 changed files with 26 additions and 0 deletions
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26
drivers/net/wireless/intel/iwlwifi/iwl-drv.c
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@ -291,11 +291,33 @@ static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
return &pieces->img[type].sec[sec];
}
static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
enum iwl_ucode_type type,
int sec)
{
struct fw_img_parsing *img = &pieces->img[type];
struct fw_sec *sec_memory;
int size = sec + 1;
size_t alloc_size = sizeof(*img->sec) * size;
if (img->sec && img->sec_counter >= size)
return;
sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
if (!sec_memory)
return;
img->sec = sec_memory;
img->sec_counter = size;
}
static void set_sec_data(struct iwl_firmware_pieces *pieces,
enum iwl_ucode_type type,
int sec,
const void *data)
{
alloc_sec_data(pieces, type, sec);
pieces->img[type].sec[sec].data = data;
}
@ -304,6 +326,8 @@ static void set_sec_size(struct iwl_firmware_pieces *pieces,
int sec,
size_t size)
{
alloc_sec_data(pieces, type, sec);
pieces->img[type].sec[sec].size = size;
}
@ -319,6 +343,8 @@ static void set_sec_offset(struct iwl_firmware_pieces *pieces,
int sec,
u32 offset)
{
alloc_sec_data(pieces, type, sec);
pieces->img[type].sec[sec].offset = offset;
}