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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Jacky Bai <ping.bai@nxp.com>, Peng Fan <peng.fan@nxp.com>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Sasha Levin <sashal@kernel.org>,
	tglx@linutronix.de, shawnguo@kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 4.14 1/4] clocksource/drivers/timer-imx-gpt: Fix potential memory leak
Date: Mon,  6 Nov 2023 18:17:22 -0500	[thread overview]
Message-ID: <20231106231728.3736117-1-sashal@kernel.org> (raw)

From: Jacky Bai <ping.bai@nxp.com>

[ Upstream commit 8051a993ce222a5158bccc6ac22ace9253dd71cb ]

Fix coverity Issue CID 250382:  Resource leak (RESOURCE_LEAK).
Add kfree when error return.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20231009083922.1942971-1-ping.bai@nxp.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clocksource/timer-imx-gpt.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index 6ec6d79b237ce..fcc12f72e907f 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -489,12 +489,16 @@ static int __init mxc_timer_init_dt(struct device_node *np,  enum imx_gpt_type t
 		return -ENOMEM;
 
 	imxtm->base = of_iomap(np, 0);
-	if (!imxtm->base)
-		return -ENXIO;
+	if (!imxtm->base) {
+		ret = -ENXIO;
+		goto err_kfree;
+	}
 
 	imxtm->irq = irq_of_parse_and_map(np, 0);
-	if (imxtm->irq <= 0)
-		return -EINVAL;
+	if (imxtm->irq <= 0) {
+		ret = -EINVAL;
+		goto err_kfree;
+	}
 
 	imxtm->clk_ipg = of_clk_get_by_name(np, "ipg");
 
@@ -507,11 +511,15 @@ static int __init mxc_timer_init_dt(struct device_node *np,  enum imx_gpt_type t
 
 	ret = _mxc_timer_init(imxtm);
 	if (ret)
-		return ret;
+		goto err_kfree;
 
 	initialized = 1;
 
 	return 0;
+
+err_kfree:
+	kfree(imxtm);
+	return ret;
 }
 
 static int __init imx1_timer_init_dt(struct device_node *np)
-- 
2.42.0


WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Jacky Bai <ping.bai@nxp.com>, Peng Fan <peng.fan@nxp.com>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Sasha Levin <sashal@kernel.org>,
	tglx@linutronix.de, shawnguo@kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 4.14 1/4] clocksource/drivers/timer-imx-gpt: Fix potential memory leak
Date: Mon,  6 Nov 2023 18:17:22 -0500	[thread overview]
Message-ID: <20231106231728.3736117-1-sashal@kernel.org> (raw)

From: Jacky Bai <ping.bai@nxp.com>

[ Upstream commit 8051a993ce222a5158bccc6ac22ace9253dd71cb ]

Fix coverity Issue CID 250382:  Resource leak (RESOURCE_LEAK).
Add kfree when error return.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20231009083922.1942971-1-ping.bai@nxp.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clocksource/timer-imx-gpt.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index 6ec6d79b237ce..fcc12f72e907f 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -489,12 +489,16 @@ static int __init mxc_timer_init_dt(struct device_node *np,  enum imx_gpt_type t
 		return -ENOMEM;
 
 	imxtm->base = of_iomap(np, 0);
-	if (!imxtm->base)
-		return -ENXIO;
+	if (!imxtm->base) {
+		ret = -ENXIO;
+		goto err_kfree;
+	}
 
 	imxtm->irq = irq_of_parse_and_map(np, 0);
-	if (imxtm->irq <= 0)
-		return -EINVAL;
+	if (imxtm->irq <= 0) {
+		ret = -EINVAL;
+		goto err_kfree;
+	}
 
 	imxtm->clk_ipg = of_clk_get_by_name(np, "ipg");
 
@@ -507,11 +511,15 @@ static int __init mxc_timer_init_dt(struct device_node *np,  enum imx_gpt_type t
 
 	ret = _mxc_timer_init(imxtm);
 	if (ret)
-		return ret;
+		goto err_kfree;
 
 	initialized = 1;
 
 	return 0;
+
+err_kfree:
+	kfree(imxtm);
+	return ret;
 }
 
 static int __init imx1_timer_init_dt(struct device_node *np)
-- 
2.42.0


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             reply	other threads:[~2023-11-06 23:20 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-06 23:17 Sasha Levin [this message]
2023-11-06 23:17 ` [PATCH AUTOSEL 4.14 1/4] clocksource/drivers/timer-imx-gpt: Fix potential memory leak Sasha Levin
2023-11-06 23:17 ` [PATCH AUTOSEL 4.14 2/4] binfmt_misc: cleanup on filesystem umount Sasha Levin
2023-11-07  0:05   ` Kees Cook
2023-11-16 18:02     ` Sasha Levin
2023-11-06 23:17 ` [PATCH AUTOSEL 4.14 3/4] clocksource/drivers/timer-atmel-tcb: Fix initialization on SAM9 hardware Sasha Levin
2023-11-06 23:17 ` [PATCH AUTOSEL 4.14 4/4] x86/mm: Drop the 4 MB restriction on minimal NUMA node memory size Sasha Levin

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