[PATCH 4.9 007/212] ath9k_htc: release allocated buffer if timed out

From: Greg Kroah-Hartman
Date: Thu Aug 20 2020 - 08:12:42 EST


From: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>

[ Upstream commit 853acf7caf10b828102d92d05b5c101666a6142b ]

In htc_config_pipe_credits, htc_setup_complete, and htc_connect_service
if time out happens, the allocated buffer needs to be released.
Otherwise there will be memory leak.

Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/htc_hst.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c
index 257b6ee51e54b..1af216aa5adae 100644
--- a/drivers/net/wireless/ath/ath9k/htc_hst.c
+++ b/drivers/net/wireless/ath/ath9k/htc_hst.c
@@ -175,6 +175,7 @@ static int htc_config_pipe_credits(struct htc_target *target)
time_left = wait_for_completion_timeout(&target->cmd_wait, HZ);
if (!time_left) {
dev_err(target->dev, "HTC credit config timeout\n");
+ kfree_skb(skb);
return -ETIMEDOUT;
}

@@ -211,6 +212,7 @@ static int htc_setup_complete(struct htc_target *target)
time_left = wait_for_completion_timeout(&target->cmd_wait, HZ);
if (!time_left) {
dev_err(target->dev, "HTC start timeout\n");
+ kfree_skb(skb);
return -ETIMEDOUT;
}

@@ -284,6 +286,7 @@ int htc_connect_service(struct htc_target *target,
if (!time_left) {
dev_err(target->dev, "Service connection timeout for: %d\n",
service_connreq->service_id);
+ kfree_skb(skb);
return -ETIMEDOUT;
}

--
2.25.1