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authorDan Carpenter <dan.carpenter@linaro.org>2023-09-15 15:59:59 +0300
committerVinod Koul <vkoul@kernel.org>2023-10-02 18:58:33 +0300
commit14f6d317913f634920a640e9047aa2e66f5bdcb7 (patch)
tree675f3d2a3dbf10758a8ebc3b3e0a0fe53cbed21c /drivers/dma/ti
parent9c6e02eab10a8a7628cac2cd9b8db6806acc63ca (diff)
downloadlinux-14f6d317913f634920a640e9047aa2e66f5bdcb7.tar.xz
dmaengine: ti: edma: handle irq_of_parse_and_map() errors
Zero is not a valid IRQ for in-kernel code and the irq_of_parse_and_map() function returns zero on error. So this check for valid IRQs should only accept values > 0. Fixes: 2b6b3b742019 ("ARM/dmaengine: edma: Merge the two drivers under drivers/dma/") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com> Link: https://lore.kernel.org/r/f15cb6a7-8449-4f79-98b6-34072f04edbc@moroto.mountain Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/ti')
-rw-r--r--drivers/dma/ti/edma.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c
index fe06288e034b..f1f920861fa9 100644
--- a/drivers/dma/ti/edma.c
+++ b/drivers/dma/ti/edma.c
@@ -2401,7 +2401,7 @@ static int edma_probe(struct platform_device *pdev)
if (irq < 0 && node)
irq = irq_of_parse_and_map(node, 0);
- if (irq >= 0) {
+ if (irq > 0) {
irq_name = devm_kasprintf(dev, GFP_KERNEL, "%s_ccint",
dev_name(dev));
ret = devm_request_irq(dev, irq, dma_irq_handler, 0, irq_name,
@@ -2417,7 +2417,7 @@ static int edma_probe(struct platform_device *pdev)
if (irq < 0 && node)
irq = irq_of_parse_and_map(node, 2);
- if (irq >= 0) {
+ if (irq > 0) {
irq_name = devm_kasprintf(dev, GFP_KERNEL, "%s_ccerrint",
dev_name(dev));
ret = devm_request_irq(dev, irq, dma_ccerr_handler, 0, irq_name,