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NVMe: Fix error handling of class_create("nvme") 

class_create() returns ERR_PTR on failure,
so IS_ERR() should be used instead of check for NULL.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Alexey Khoroshilov 2015-03-07 01:43:41 +03:00 committed by Jens Axboe
parent de9ad6d4ed
commit c727040bda
1 changed files with 3 additions and 1 deletions
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4
drivers/block/nvme-core.c
View File

@ -3163,8 +3163,10 @@ static int __init nvme_init(void)
nvme_char_major = result; nvme_char_major = result;
nvme_class = class_create(THIS_MODULE, "nvme"); nvme_class = class_create(THIS_MODULE, "nvme");
if (!nvme_class) if (IS_ERR(nvme_class)) {
result = PTR_ERR(nvme_class);
goto unregister_chrdev; goto unregister_chrdev;
}
result = pci_register_driver(&nvme_driver); result = pci_register_driver(&nvme_driver);
if (result) if (result)