Messages in this thread Patch in this message | | | From | Kunwu Chan <> | Subject | [PATCH] net: dsa: vsc73xx: Add null pointer check to vsc73xx_gpio_probe | Date | Mon, 11 Dec 2023 10:45:49 +0800 |
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devm_kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.
Cc: Kunwu Chan <kunwu.chan@hotmail.com> Signed-off-by: Kunwu Chan <chentao@kylinos.cn> --- drivers/net/dsa/vitesse-vsc73xx-core.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/dsa/vitesse-vsc73xx-core.c b/drivers/net/dsa/vitesse-vsc73xx-core.c index e6f29e4e508c..f136eb5aea69 100644 --- a/drivers/net/dsa/vitesse-vsc73xx-core.c +++ b/drivers/net/dsa/vitesse-vsc73xx-core.c @@ -1135,6 +1135,10 @@ 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) { + dev_err(vsc->dev, "Fail to allocate memory\n"); + return -ENOMEM; + } vsc->gc.ngpio = 4; vsc->gc.owner = THIS_MODULE; vsc->gc.parent = vsc->dev; -- 2.39.2
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