Commit 66bc6003 authored Jun 18, 2013 by Philip J Kelleher Committed by Jens Axboe Jun 19, 2013

rsxx: Fixes DLPAR add kernel panic if partition still mounted.



A kernel panic would occur on a DLPAR add if there was a partition
still mounted during the DLPAR remove. This bug fix will allow the
user to unmount the partition and bring the driver back into a
good state after the DLPAR add.

Signed-off-by: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent f730e3dc

drivers/block/rsxx/dev.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -171,6 +171,9 @@ static void rsxx_make_request(struct request_queue q, struct bio bio)

		might_sleep();

		if (!card)
		goto req_err;

		if (unlikely(card->halt)) {
		st = -EFAULT;
		goto req_err;
		@@ -331,6 +334,7 @@ void rsxx_destroy_dev(struct rsxx_cardinfo *card)
		card->gendisk = NULL;

		blk_cleanup_queue(card->queue);
		card->queue->queuedata = NULL;
		unregister_blkdev(card->major, DRIVER_NAME);
		}