Commit d3ad0aa4 authored by Jens Axboe's avatar Jens Axboe
Browse files

mmc: need to zero sglist on init 



Otherwise we could have junk in the sg fields, fooling
the sg chaining into thinking ->page is valid.

Acked-by: default avatarPierre Ossman <drzeus@drzeus.cx>
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent a683d652

drivers/mmc/card/queue.c

+3 −3
Original line number Diff line number Diff line
@@ -153,14 +153,14 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock 
			blk_queue_max_hw_segments(mq->queue, bouncesz / 512);

			blk_queue_max_segment_size(mq->queue, bouncesz);



			mq->sg = kmalloc(sizeof(struct scatterlist),

			mq->sg = kzalloc(sizeof(struct scatterlist),

				GFP_KERNEL);

			if (!mq->sg) {

				ret = -ENOMEM;

				goto cleanup_queue;

			}



			mq->bounce_sg = kmalloc(sizeof(struct scatterlist) *

			mq->bounce_sg = kzalloc(sizeof(struct scatterlist) *

				bouncesz / 512, GFP_KERNEL);

			if (!mq->bounce_sg) {

				ret = -ENOMEM;
@@ -177,7 +177,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock 
		blk_queue_max_hw_segments(mq->queue, host->max_hw_segs);

		blk_queue_max_segment_size(mq->queue, host->max_seg_size);



		mq->sg = kmalloc(sizeof(struct scatterlist) *

		mq->sg = kzalloc(sizeof(struct scatterlist) *

			host->max_phys_segs, GFP_KERNEL);

		if (!mq->sg) {

			ret = -ENOMEM;