From: Jens Axboe Date: Thu, 4 Oct 2007 18:11:30 +0000 (+0200) Subject: mmc: need to zero sglist on init X-Git-Tag: firefly_0821_release~25449^2~1^2~12 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d3ad0aa4248956399b79a82f9e8ab8155a0f98db;p=firefly-linux-kernel-4.4.55.git 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: Pierre Ossman Signed-off-by: Jens Axboe --- diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index b0abc7d92805..a5d0354bbbda 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -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;