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authorTejun Heo <tj@kernel.org>2011-06-01 08:27:41 +0200
committerJens Axboe <jaxboe@fusionio.com>2011-06-01 08:28:47 +0200
commit4c49ff3fe128ca68dabd07537415c419ad7f82f9 (patch)
tree58898648d2b9d896804fa98fce9eecb2724e2a75 /block
parent4495a7d41dbda03841c2a1c2a5ce7135a45131ba (diff)
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block: blkdev_get() should access ->bd_disk only after success
d4dc210f69 (block: don't block events on excl write for non-optical devices) added dereferencing of bdev->bd_disk to test GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE; however, bdev->bd_disk can be %NULL if open failed which can lead to an oops. Test the flag after testing open was successful, not before. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: David Miller <davem@davemloft.net> Tested-by: David Miller <davem@davemloft.net> Cc: stable@kernel.org Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block')
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