From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
The pointer ndev is being dereferenced before it is being null checked,
hence there is a potential null pointer deference. Fix this by only
dereferencing ndev after it has been null checked
Detected by CoverityScan, CID#1467010 ("Dereference before null check")
Fixes: e00243fab84b ("wil6210: infrastructure for multiple virtual interfaces")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/net/wireless/ath/wil6210/main.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index a4b413e8d55a..82aec6b06d09 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -391,7 +391,7 @@ static void wil_fw_error_worker(struct work_struct *work)
struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
fw_error_worker);
struct net_device *ndev = wil->main_ndev;
- struct wireless_dev *wdev = ndev->ieee80211_ptr;
+ struct wireless_dev *wdev;
wil_dbg_misc(wil, "fw error worker\n");
@@ -399,6 +399,7 @@ static void wil_fw_error_worker(struct work_struct *work)
wil_info(wil, "No recovery - interface is down\n");
return;
}
+ wdev = ndev->ieee80211_ptr;
/* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO
* passed since last recovery attempt
--
2.15.1
