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iwlwifi: mvm: handle possible BIOS bug 

In iwl_mvm_sar_get_ewrd_table() In case of a BIOS bug, n_profiles
might be 0 thus we need to return an error value.  Found by Klocwork.

Signed-off-by: Sharon Dvir <sharon.dvir@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Sharon Dvir 2017-02-21 11:12:12 +02:00 committed by Luca Coelho
parent 3287bb1088
commit e2ef147686
1 changed files with 6 additions and 0 deletions
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6
drivers/net/wireless/intel/iwlwifi/mvm/fw.c
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@ -1201,6 +1201,12 @@ static int iwl_mvm_sar_get_ewrd_table(struct iwl_mvm *mvm)
enabled = !!(wifi_pkg->package.elements[1].integer.value);
n_profiles = wifi_pkg->package.elements[2].integer.value;
/* in case of BIOS bug */
if (n_profiles <= 0) {
ret = -EINVAL;
goto out_free;
}
for (i = 0; i < n_profiles; i++) {
/* the tables start at element 3 */
static int pos = 3;