| Message ID | 20241115060336.3610-1-hanchunchao@inspur.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | dmaengine: ti: k3-udma: Add NULL check in udma_probe | expand |
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index b3f27b3f9209..e940753a8ab1 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -5566,6 +5566,8 @@ static int udma_probe(struct platform_device *pdev) uc->config.dir = DMA_MEM_TO_MEM; uc->name = devm_kasprintf(dev, GFP_KERNEL, "%s chan%d", dev_name(dev), i); + if (!uc->name) + return -ENOMEM; vchan_init(&uc->vc, &ud->ddev); /* Use custom vchan completion handling */
devm_kasprintf() can return a NULL pointer on failure,but this returned value udma_probe() is not checked. Add NULL check in udma_probe(), to handle kernel NULL pointer dereference error. Fixes: 25dcb5dd7b7c ("dmaengine: ti: New driver for K3 UDMA") Signed-off-by: Charles Han <hanchunchao@inspur.com> --- drivers/dma/ti/k3-udma.c | 2 ++ 1 file changed, 2 insertions(+)