axonram: Fix gendisk handling
authorJan Kara <jack@suse.cz>
Wed, 8 Mar 2017 13:56:05 +0000 (14:56 +0100)
committerJens Axboe <axboe@fb.com>
Wed, 8 Mar 2017 17:55:40 +0000 (10:55 -0700)
commit672a2c87c83649fb0167202342ce85af9a3b4f1c
treeb871c356005788f0738f963e0aacc154c9d88bee
parent79bd99596b7305ab08109a8bf44a6a4511dbf1cd
axonram: Fix gendisk handling

It is invalid to call del_gendisk() when disk->queue is NULL. Fix error
handling in axon_ram_probe() to avoid doing that.

Also del_gendisk() does not drop a reference to gendisk allocated by
alloc_disk(). That has to be done by put_disk(). Add that call where
needed.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
arch/powerpc/sysdev/axonram.c