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wifi: iwlwifi: fix pointer arithmetic in iwl_add_mcc_to_tas_block_list

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The expression list[*size++] increments the pointer 'size'
rather than the u8 value it points to (operator precedence: ++
binds to the pointer before the dereference). As a result the
block-list entry is written at the correct index but *size is
never incremented, so the caller's count stays at zero and
subsequent calls overwrite slot 0 every time.

Change to list[(*size)++] so that the value pointed to by size
is incremented after use as the array index.

Fixes: 5f4656610e ("wifi: iwlwifi: extend TAS_CONFIG cmd support for v5")
Assisted-by: GitHubCopilot:gpt-5.3-codex
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260715215523.d2cd92242582.Ife4140a4e27be2a1cd9f886c5a9b376ce182a019@changeid
This commit is contained in:
Emmanuel Grumbach 2026-07-15 21:57:06 +03:00 committed by Miri Korenblit
parent a31b0e535f
commit bc796f84ec
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
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@ -389,7 +389,7 @@ bool iwl_add_mcc_to_tas_block_list(u16 *list, u8 *size, u16 mcc)
if (*size >= IWL_WTAS_BLACK_LIST_MAX)
return false;
list[*size++] = mcc;
list[(*size)++] = mcc;
return true;
}
IWL_EXPORT_SYMBOL(iwl_add_mcc_to_tas_block_list);