mac80211: fix potential null pointer dereference
he_op is being dereferenced before it is null checked, hence there is a potential null pointer dereference. Fix this by moving the pointer dereference after he_op has been properly null checked. Notice that, currently, he_op is already being null checked before calling this function at 4593: 4593 if (!he_oper || 4594 !ieee80211_verify_sta_he_mcs_support(sband, he_oper)) 4595 ifmgd->flags |= IEEE80211_STA_DISABLE_HE; but in case ieee80211_verify_sta_he_mcs_support is ever called without verifying he_oper is not null, we will end up having a null pointer dereference. So, we better don't take any chances. Addresses-Coverity-ID: 1470068 ("Dereference before null check") Signed-off-by: NGustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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