linux-kernel - [PATCH] dpll: fix return value check for kmemdup

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Message-Id: <20240513032824.2410459-1-nichen@iscas.ac.cn>
Date: Mon, 13 May 2024 11:28:24 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: vadim.fedorenko@...ux.dev,
	arkadiusz.kubalewski@...el.com,
	jiri@...nulli.us,
	davem@...emloft.net,
	jan.glaza@...el.com,
	przemyslaw.kitszel@...el.com
Cc: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] dpll: fix return value check for kmemdup

The return value of kmemdup() is dst->freq_supported, not
src->freq_supported. Update the check accordingly.

Fixes: 830ead5fb0c5 ("dpll: fix pin dump crash for rebound module")
Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
 drivers/dpll/dpll_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dpll/dpll_core.c b/drivers/dpll/dpll_core.c
index d0f6693ca142..32019dc33cca 100644
--- a/drivers/dpll/dpll_core.c
+++ b/drivers/dpll/dpll_core.c
@@ -449,7 +449,7 @@ static int dpll_pin_prop_dup(const struct dpll_pin_properties *src,
 				   sizeof(*src->freq_supported);
 		dst->freq_supported = kmemdup(src->freq_supported,
 					      freq_size, GFP_KERNEL);
-		if (!src->freq_supported)
+		if (!dst->freq_supported)
 			return -ENOMEM;
 	}
 	if (src->board_label) {
-- 
2.25.1