diff mbox series

misc: pci_endpoint_test: fix return value of error branch

Message ID 1605790158-6780-1-git-send-email-wangxiongfeng2@huawei.com
State New
Headers show
Series misc: pci_endpoint_test: fix return value of error branch | expand

Commit Message

Xiongfeng Wang Nov. 19, 2020, 12:49 p.m. UTC 
We return 'err' in the error branch, but this variable may be set as
zero before. Fix it by setting 'err' as a negative value before we
goto the error label.

Fixes: e03327122e2c ("pci_endpoint_test: Add 2 ioctl commands")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
---
 drivers/misc/pci_endpoint_test.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index 146ca6f..d384473 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -811,8 +811,10 @@  static int pci_endpoint_test_probe(struct pci_dev *pdev,
 
 	pci_set_master(pdev);
 
-	if (!pci_endpoint_test_alloc_irq_vectors(test, irq_type))
+	if (!pci_endpoint_test_alloc_irq_vectors(test, irq_type)) {
+		err = -EINVAL;
 		goto err_disable_irq;
+	}
 
 	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
 		if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
@@ -849,8 +851,10 @@  static int pci_endpoint_test_probe(struct pci_dev *pdev,
 		goto err_ida_remove;
 	}
 
-	if (!pci_endpoint_test_request_irq(test))
+	if (!pci_endpoint_test_request_irq(test)) {
+		err = -EINVAL;
 		goto err_kfree_test_name;
+	}
 
 	misc_device = &test->miscdev;
 	misc_device->minor = MISC_DYNAMIC_MINOR;