linux-kernel - [PATCH] ath11k: do not return random value

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Date:   Mon,  4 Apr 2022 12:53:24 +0200
From:   Michael Straube <straube.linux@...il.com>
To:     kvalo@...nel.org
Cc:     davem@...emloft.net, kuba@...nel.org, ath11k@...ts.infradead.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Michael Straube <straube.linux@...il.com>
Subject: [PATCH] ath11k: do not return random value

Function ath11k_qmi_assign_target_mem_chunk() returns a random value
if of_parse_phandle() fails because the return variable ret is not
initialized before calling of_parse_phandle(). Return -EINVAL to avoid
possibly returning 0, which would be wrong here.

Issue found by smatch.

Signed-off-by: Michael Straube <straube.linux@...il.com>
---
 drivers/net/wireless/ath/ath11k/qmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c
index 65d3c6ba35ae..81b2304b1fde 100644
--- a/drivers/net/wireless/ath/ath11k/qmi.c
+++ b/drivers/net/wireless/ath/ath11k/qmi.c
@@ -1932,7 +1932,7 @@ static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab)
 			if (!hremote_node) {
 				ath11k_dbg(ab, ATH11K_DBG_QMI,
 					   "qmi fail to get hremote_node\n");
-				return ret;
+				return -EINVAL;
 			}
 
 			ret = of_address_to_resource(hremote_node, 0, &res);
-- 
2.35.1