devm_kasprintf may fails, irq_name and uc->name might be null and wrong irq
name will be used in request.
Signed-off-by: Kang Chen <void0red@xxxxxxxxx>
---
drivers/dma/ti/edma.c | 8 ++++++++
drivers/dma/ti/k3-udma.c | 2 ++
2 files changed, 10 insertions(+)
diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c
index fa06d7e6d..85cd72b64 100644
--- a/drivers/dma/ti/edma.c
+++ b/drivers/dma/ti/edma.c
@@ -2413,6 +2413,10 @@ 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 +2433,10 @@ 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) {
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 7e23a6fde..692d1d25c 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -5494,6 +5494,8 @@ 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 */
--
2.34.1
