From: Nishad Kamdar <nishadkamdar@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Joe Perches <joe@perches.com>
Cc: devel@driverdev.osuosl.org, Kees Cook <keescook@chromium.org>,
Sergio Paracuellos <sergio.paracuellos@gmail.com>,
linux-kernel@vger.kernel.org,
Matthias Brugger <matthias.bgg@gmail.com>,
linux-mediatek@lists.infradead.org, NeilBrown <neil@brown.name>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH] staging: mt7621-pinctrl: Test devm_kzalloc for failure while improving the code
Date: Tue, 29 Jan 2019 21:15:12 +0530 [thread overview]
Message-ID: <20190129154507.GA25365@nishad> (raw)
This patch tests the return of devm_kzalloc for failure and
improves the code.
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
---
drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c b/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
index 3e959fa73703..9b52d44abef1 100644
--- a/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
+++ b/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
@@ -350,7 +350,6 @@ static int rt2880_pinmux_probe(struct platform_device *pdev)
for_each_compatible_node(np, NULL, "ralink,rt2880-gpio") {
const __be32 *ngpio, *gpiobase;
struct pinctrl_gpio_range *range;
- char *name;
if (!of_device_is_available(np))
continue;
@@ -362,9 +361,10 @@ static int rt2880_pinmux_probe(struct platform_device *pdev)
return -EINVAL;
}
- range = devm_kzalloc(p->dev, sizeof(*range) + 4, GFP_KERNEL);
- range->name = name = (char *)&range[1];
- sprintf(name, "pio");
+ range = devm_kzalloc(p->dev, sizeof(*range), GFP_KERNEL);
+ if (!range)
+ return -ENOMEM;
+ range->name = "pio";
range->npins = __be32_to_cpu(*ngpio);
range->base = __be32_to_cpu(*gpiobase);
range->pin_base = range->base;
--
2.17.1
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reply other threads:[~2019-01-29 15:45 UTC|newest]
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