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iwlwifi/fw: use struct_size over open coded arithmetic

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Replace zero-length array with flexible-array member and make use
of the struct_size() helper in kzalloc().

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@zte.com.cn>
Link: https://lore.kernel.org/r/20220216030841.1839666-1-chi.minghao@zte.com.cn
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Minghao Chi (CGEL ZTE) 2022-02-16 03:08:41 +00:00 committed by Luca Coelho
parent 990c274256
commit 1132f6de0b
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/intel/iwlwifi/fw/dbg.c
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@ -2749,7 +2749,7 @@ int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt,
delay = le32_to_cpu(trigger->stop_delay) * USEC_PER_MSEC;
}
desc = kzalloc(sizeof(*desc) + len, GFP_ATOMIC);
desc = kzalloc(struct_size(desc, trig_desc.data, len), GFP_ATOMIC);
if (!desc)
return -ENOMEM;