diff options
| author | Henry Martin <bsdhenrymartin@gmail.com> | 2025-04-02 05:39:00 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2025-05-14 17:27:23 +0300 |
| commit | fd447415e74bccd7362f760d4ea727f8e1ebfe91 (patch) | |
| tree | 0479515afd8abae5342ac3bd3f9d0c46094232ff | |
| parent | 00ff4d68a9ae4c9315c166f1fafa47f4c0a65f6f (diff) | |
| download | linux-fd447415e74bccd7362f760d4ea727f8e1ebfe91.tar.xz | |
dmaengine: ti: Add NULL check in udma_probe()
devm_kasprintf() returns NULL when memory allocation fails. Currently,
udma_probe() does not check for this case, which results in a NULL
pointer dereference.
Add NULL check after devm_kasprintf() to prevent this issue.
Fixes: 25dcb5dd7b7c ("dmaengine: ti: New driver for K3 UDMA")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Reviewed-by: Nathan Lynch <nathan.lynch@amd.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://lore.kernel.org/r/20250402023900.43440-1-bsdhenrymartin@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
| -rw-r--r-- | drivers/dma/ti/k3-udma.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index b223a7aacb0c..ec914965a45e 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -5618,7 +5618,8 @@ 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 */ tasklet_setup(&uc->vc.task, udma_vchan_complete); |