diff options
| author |   Kishon Vijay Abraham I <kishon@ti.com> | 2017-10-11 14:14:37 +0530 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2017-10-31 15:33:46 -0500 |
| commit | 139838fffec40296d7235982a1a9b917ba31530f (patch) | |
| tree | 1751808b4b9c8d48a5ead02d5ff99420754084bf /drivers/misc | |
| parent | misc: pci_endpoint_test: Fix failure path return values in probe (diff) | |
| download | linux-dev-139838fffec40296d7235982a1a9b917ba31530f.tar.xz linux-dev-139838fffec40296d7235982a1a9b917ba31530f.zip | |
misc: pci_endpoint_test: Fix pci_endpoint_test not releasing resources on remove
sscanf(misc_device->name, DRV_MODULE_NAME ".%d", &id) in
pci_endpoint_test_remove() returns 0, which results in 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@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/pci_endpoint_test.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c index 5e7af21686d6..bf64d150ec41 100644 --- a/drivers/misc/pci_endpoint_test.c +++ b/drivers/misc/pci_endpoint_test.c @@ -560,17 +560,24 @@ 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); @@ -603,6 +610,7 @@ 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]) |