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wifi: cw1200: Fix potential memory leak in cw1200_bh_rx_helper()

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[ Upstream commit 5e88e864118c20e63a1571d0ff0a152e5d684959 ]

In one of the error paths, the memory allocated for skb_rx is not freed.
Fix that by freeing it before returning.

Fixes: a910e4a94f ("cw1200: add driver for the ST-E CW1100 & CW1200 WLAN chipsets")
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Link: https://patch.msgid.link/20251110175316.106591-1-nihaal@cse.iitm.ac.in
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Abdun Nihaal
2025-11-10 23:23:15 +05:30
committed by Greg Kroah-Hartman
parent 61abf8c316
commit cbfcd8ee53
1 changed files with 4 additions and 2 deletions
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6
drivers/net/wireless/st/cw1200/bh.c
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@@ -317,10 +317,12 @@ static int cw1200_bh_rx_helper(struct cw1200_common *priv,
if (wsm_id & 0x0400) {
int rc = wsm_release_tx_buffer(priv, 1);
if (WARN_ON(rc < 0))
if (WARN_ON(rc < 0)) {
dev_kfree_skb(skb_rx);
return rc;
else if (rc > 0)
} else if (rc > 0) {
*tx = 1;
}
}
/* cw1200_wsm_rx takes care on SKB livetime */