diff options
| author | Kunwu Chan <chentao@kylinos.cn> | 2024-01-18 06:19:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-01 15:26:26 +0300 |
| commit | 9d508c897153ae8dd79303f7f035f078139f6b49 (patch) | |
| tree | c554ee5129498478092b67cbe7d742fb71d3f218 /drivers/dma | |
| parent | 3e746c4e4848914fa2d1ad5192cab5c589e6be13 (diff) | |
| download | linux-9d508c897153ae8dd79303f7f035f078139f6b49.tar.xz | |
dmaengine: ti: edma: Add some null pointer checks to the edma_probe
[ Upstream commit 6e2276203ac9ff10fc76917ec9813c660f627369 ]
devm_kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. Ensure the allocation was successful
by checking the pointer validity.
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Link: https://lore.kernel.org/r/20240118031929.192192-1-chentao@kylinos.cn
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/edma.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c index 7ec6e5d728b0..9212ac9f978f 100644 --- a/drivers/dma/ti/edma.c +++ b/drivers/dma/ti/edma.c @@ -2413,6 +2413,11 @@ static int edma_probe(struct platform_device *pdev) if (irq > 0) { irq_name = devm_kasprintf(dev, GFP_KERNEL, "%s_ccint", dev_name(dev)); + if (!irq_name) { + ret = -ENOMEM; + goto err_disable_pm; + } + ret = devm_request_irq(dev, irq, dma_irq_handler, 0, irq_name, ecc); if (ret) { @@ -2429,6 +2434,11 @@ static int edma_probe(struct platform_device *pdev) if (irq > 0) { irq_name = devm_kasprintf(dev, GFP_KERNEL, "%s_ccerrint", dev_name(dev)); + if (!irq_name) { + ret = -ENOMEM; + goto err_disable_pm; + } + ret = devm_request_irq(dev, irq, dma_ccerr_handler, 0, irq_name, ecc); if (ret) { |