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net: dsa: vsc73xx: Add null pointer check to vsc73xx_gpio_probe

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[ Upstream commit 776dac5a66 ]

devm_kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.

Fixes: 05bd97fc55 ("net: dsa: Add Vitesse VSC73xx DSA router driver")
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240111072018.75971-1-chentao@kylinos.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kunwu Chan 2024-01-11 15:20:18 +08:00 committed by Greg Kroah-Hartman
parent 29ffa63f21
commit 78e8546646
1 changed files with 2 additions and 0 deletions
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2
drivers/net/dsa/vitesse-vsc73xx-core.c
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@ -1119,6 +1119,8 @@ static int vsc73xx_gpio_probe(struct vsc73xx *vsc)
vsc->gc.label = devm_kasprintf(vsc->dev, GFP_KERNEL, "VSC%04x",
vsc->chipid);
if (!vsc->gc.label)
return -ENOMEM;
vsc->gc.ngpio = 4;
vsc->gc.owner = THIS_MODULE;
vsc->gc.parent = vsc->dev;