#syz test: https://github.com/google/kmsan.git master
--- a/drivers/net/wireless/ath/ath9k/wmi.c
+++ b/drivers/net/wireless/ath/ath9k/wmi.c
@@ -308,8 +308,11 @@ int ath9k_wmi_cmd(struct wmi *wmi, enum wmi_cmd_id cmd_id,
unsigned long time_left;
int ret = 0;
- if (ah->ah_flags & AH_UNPLUGGED)
- return 0;
+ if (ah->ah_flags & AH_UNPLUGGED) {
+ ath_dbg(common, WMI, "Device unplugged for WMI command: %s\n",
+ wmi_cmd_to_name(cmd_id));
+ return -ENODEV;
+ }
skb = alloc_skb(headroom + cmd_len, GFP_ATOMIC);
if (!skb)
--