[PATCH 4.19 099/293] ath6kl: wmi: fix an error code in ath6kl_wmi_sync_point()

From: Greg Kroah-Hartman
Date: Mon Sep 20 2021 - 13:40:39 EST


From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

[ Upstream commit fd6729ec534cffbbeb3917761e6d1fe6a412d3fe ]

This error path is unlikely because of it checked for NULL and
returned -ENOMEM earlier in the function. But it should return
an error code here as well if we ever do hit it because of a
race condition or something.

Fixes: bdcd81707973 ("Add ath6kl cleaned up driver")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210813113438.GB30697@kili
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/wireless/ath/ath6kl/wmi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index 987ebae8ea0e..afa7a82ffd5d 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -2513,8 +2513,10 @@ static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx)
goto free_data_skb;

for (index = 0; index < num_pri_streams; index++) {
- if (WARN_ON(!data_sync_bufs[index].skb))
+ if (WARN_ON(!data_sync_bufs[index].skb)) {
+ ret = -ENOMEM;
goto free_data_skb;
+ }

ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev,
data_sync_bufs[index].
--
2.30.2