sscanf(misc_device->name, DRV_MODULE_NAME ".%d", &id) in
pci_endpoint_test_remove returns '0' which results in
pci_endpoint_test_remove returning early without releasing the resources.
This is as a result of misc_device not having a valid name. Fix it here.
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
---
drivers/misc/pci_endpoint_test.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index e787a63a321a..5cb624b6fa0a 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -551,17 +551,24 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev,
snprintf(name, sizeof(name), DRV_MODULE_NAME ".%d", id);
misc_device = &test->miscdev;
misc_device->minor = MISC_DYNAMIC_MINOR;
- misc_device->name = name;
+ misc_device->name = kstrdup(name, GFP_KERNEL);
+ if (!misc_device->name) {
+ err = -ENOMEM;
+ goto err_ida_remove;
+ }
misc_device->fops = &pci_endpoint_test_fops,
err = misc_register(misc_device);
if (err) {
dev_err(dev, "failed to register device\n");
- goto err_ida_remove;
+ goto err_kfree_name;
}
return 0;
+err_kfree_name:
+ kfree(misc_device->name);
+
err_ida_remove:
ida_simple_remove(&pci_endpoint_test_ida, id);
@@ -592,6 +599,7 @@ static void pci_endpoint_test_remove(struct pci_dev *pdev)
return;
misc_deregister(&test->miscdev);
+ kfree(misc_device->name);
ida_simple_remove(&pci_endpoint_test_ida, id);
for (bar = BAR_0; bar <= BAR_5; bar++) {
if (test->bar[bar])
--
2.11.0
--
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