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-rw-r--r--block/blk-core.c4
-rw-r--r--block/blk-lib.c11
2 files changed, 10 insertions, 5 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index a0d1104c5590..651057c4146b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -295,7 +295,7 @@ int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags)
while (!blk_try_enter_queue(q, pm)) {
if (flags & BLK_MQ_REQ_NOWAIT)
- return -EBUSY;
+ return -EAGAIN;
/*
* read pair of barrier in blk_freeze_queue_start(), we need to
@@ -325,7 +325,7 @@ int __bio_queue_enter(struct request_queue *q, struct bio *bio)
if (test_bit(GD_DEAD, &disk->state))
goto dead;
bio_wouldblock_error(bio);
- return -EBUSY;
+ return -EAGAIN;
}
/*
diff --git a/block/blk-lib.c b/block/blk-lib.c
index 67e6dbc1ae81..e59c3069e835 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -309,6 +309,11 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
struct blk_plug plug;
int ret = 0;
+ /* make sure that "len << SECTOR_SHIFT" doesn't overflow */
+ if (max_sectors > UINT_MAX >> SECTOR_SHIFT)
+ max_sectors = UINT_MAX >> SECTOR_SHIFT;
+ max_sectors &= ~bs_mask;
+
if (max_sectors == 0)
return -EOPNOTSUPP;
if ((sector | nr_sects) & bs_mask)
@@ -322,10 +327,10 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
bio = blk_next_bio(bio, bdev, 0, REQ_OP_SECURE_ERASE, gfp);
bio->bi_iter.bi_sector = sector;
- bio->bi_iter.bi_size = len;
+ bio->bi_iter.bi_size = len << SECTOR_SHIFT;
- sector += len << SECTOR_SHIFT;
- nr_sects -= len << SECTOR_SHIFT;
+ sector += len;
+ nr_sects -= len;
if (!nr_sects) {
ret = submit_bio_wait(bio);
bio_put(bio);