From: kernel test robot drivers/misc/mediatek/connectivity/wlan/gen2/os/linux/gl_cfg80211.c:1587:54-55: WARNING comparing pointer to 0 Compare pointer-typed values to NULL rather than 0 Semantic patch information: This makes an effort to choose between !x and x == NULL. !x is used if it has previously been used with the function used to initialize x. This relies on type information. More type information can be obtained using the option -all_includes and the option -I to specify an include path. Generated by: scripts/coccinelle/null/badzero.cocci Fixes: 9a72d145abe4 ("mt6625l: include wifi-folder") Signed-off-by: kernel test robot --- tree: https://github.com/frank-w/BPI-R2-4.14 5.8-rc head: ca0d6f7786586ca7ba424d5967d780dd3c75748b commit: 9a72d145abe49d9cb1e16d479b0b18caa20cdd71 [5/38] mt6625l: include wifi-folder gl_cfg80211.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/misc/mediatek/connectivity/wlan/gen2/os/linux/gl_cfg80211.c +++ b/drivers/misc/mediatek/connectivity/wlan/gen2/os/linux/gl_cfg80211.c @@ -1584,7 +1584,7 @@ mtk_cfg80211_mgmt_tx(struct wiphy *wiphy DBGLOG(REQ, TRACE, "--> %s()\n", __func__); #endif - if ((wiphy == NULL) || (wdev == NULL) || (params == 0) || (cookie == NULL)) + if ((wiphy == NULL) || (wdev == NULL) || (params == NULL) || (cookie == NULL)) break; prGlueInfo = (P_GLUE_INFO_T) wiphy_priv(wiphy);