Messages in this thread Patch in this message | | | From | Hannes Reinecke <> | Subject | [PATCH] block: Check for valid bd_disk in bdev_get_queue() | Date | Wed, 30 Jan 2013 10:35:14 +0100 |
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bdev_get_queue() needs to check for a valid bd_disk pointer, otherwise it'll dereference a NULL pointer.
Signed-off-by: Hannes Reinecke <hare@suse.de>
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index f94bc83..7e28aaa 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -794,7 +794,7 @@ extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *, static inline struct request_queue *bdev_get_queue(struct block_device *bdev) { - return bdev->bd_disk->queue; + return bdev->bd_disk ? bdev->bd_disk->queue : NULL; } /*
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