wil6210: fix chan check in wil_p2p_listen
In wil_p2p_listen chan is checked to protect against NULL
pointer access only before setting channel = chan->hw_value.
Add a global parameter check to cover all accesses to chan.
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/wil6210/p2p.c b/drivers/net/wireless/ath/wil6210/p2p.c
index 1c91538..213b825 100644
--- a/drivers/net/wireless/ath/wil6210/p2p.c
+++ b/drivers/net/wireless/ath/wil6210/p2p.c
@@ -114,8 +114,10 @@
u8 channel = P2P_DMG_SOCIAL_CHANNEL;
int rc;
- if (chan)
- channel = chan->hw_value;
+ if (!chan)
+ return -EINVAL;
+
+ channel = chan->hw_value;
wil_dbg_misc(wil, "%s: duration %d\n", __func__, duration);