From: Insu Yun <wuninsu@gmail.com>
To: linus.walleij@linaro.org, gnurou@gmail.com,
linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: taesoo@gatech.edu, yeongjin.jang@gatech.edu, insu@gatech.edu,
changwoo@gatech.edu, Insu Yun <wuninsu@gmail.com>
Subject: [PATCH] gpio-mcp23s08: correctly handling failed allocation
Date: Mon, 15 Feb 2016 21:19:57 -0500 [thread overview]
Message-ID: <1455589197-6576-1-git-send-email-wuninsu@gmail.com> (raw)
Since devm_kzalloc can be failed in memory pressure,
it needs to check and return -ENOMEM
Signed-off-by: Insu Yun <wuninsu@gmail.com>
---
drivers/gpio/gpio-mcp23s08.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c
index c767879..ed51dcf 100644
--- a/drivers/gpio/gpio-mcp23s08.c
+++ b/drivers/gpio/gpio-mcp23s08.c
@@ -803,6 +803,8 @@ static int mcp230xx_probe(struct i2c_client *client,
pdata = devm_kzalloc(&client->dev,
sizeof(struct mcp23s08_platform_data),
GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
pdata->base = -1;
}
}
--
1.9.1
next reply other threads:[~2016-02-16 2:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-16 2:19 Insu Yun [this message]
2016-02-16 15:36 ` [PATCH] gpio-mcp23s08: correctly handling failed allocation Linus Walleij
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