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-rw-r--r--drivers/misc/pci_endpoint_test.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index 39d477bb0989..11530b4ec389 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -335,6 +335,11 @@ static bool pci_endpoint_test_msi_irq(struct pci_endpoint_test *test,
static int pci_endpoint_test_validate_xfer_params(struct device *dev,
struct pci_endpoint_test_xfer_param *param, size_t alignment)
{
+ if (!param->size) {
+ dev_dbg(dev, "Data size is zero\n");
+ return -EINVAL;
+ }
+
if (param->size > SIZE_MAX - alignment) {
dev_dbg(dev, "Maximum transfer data size exceeded\n");
return -EINVAL;