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| author | Henry Martin <bsdhenrymartin@gmail.com> | 2025-04-02 10:39:00 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-19 15:28:29 +0200 |
| commit | b79e10050d9d1e200541d25751dd5cb8ec58483c (patch) | |
| tree | f650ce2f6ed63d510808cc829ee74ab789160731 /drivers/dma | |
| parent | 127dfb4f1c5a2b622039c5d203f321380ea36665 (diff) | |
| download | linux-b79e10050d9d1e200541d25751dd5cb8ec58483c.tar.gz linux-b79e10050d9d1e200541d25751dd5cb8ec58483c.tar.bz2 linux-b79e10050d9d1e200541d25751dd5cb8ec58483c.zip | |
dmaengine: ti: Add NULL check in udma_probe()
[ Upstream commit fd447415e74bccd7362f760d4ea727f8e1ebfe91 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/dma')
| -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 418e1774af1e..d99cf81358c5 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -5537,7 +5537,8 @@ 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); |