summary refs log tree commit diff
path: root/drivers/mmc
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2020-09-03 07:40:57 +0200
committerJens Axboe <axboe@kernel.dk>2020-09-25 08:18:57 -0600
commitfa01b1e9733fd59ecb8b5b6d85dfb481d2025fbf (patch)
treef627199fb47da3dc4fa57dcbf305fff12997a918 /drivers/mmc
parent250eec9e390e2be6f672f9a77cf29791c189f7da (diff)
downloadlinux-fa01b1e9733fd59ecb8b5b6d85dfb481d2025fbf.tar.gz
block: add a bdev_is_partition helper
Add a littler helper to make the somewhat arcane bd_contains checks a
little more obvious.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/core/block.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index fa313b634135..8d3df0be0355 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -723,7 +723,7 @@ static int mmc_blk_check_blkdev(struct block_device *bdev)
 	 * whole block device, not on a partition.  This prevents overspray
 	 * between sibling partitions.
 	 */
-	if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains))
+	if (!capable(CAP_SYS_RAWIO) || bdev_is_partition(bdev))
 		return -EPERM;
 	return 0;
 }