linux-kernel - [PATCH 1/3] block: Return error in rescan_partitions if revalidating disk failed

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Message-Id: <1427192175-23802-2-git-send-email-famz@redhat.com>
Date:	Tue, 24 Mar 2015 18:16:13 +0800
From:	Fam Zheng <famz@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Jens Axboe <axboe@...nel.dk>,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	linux-scsi@...r.kernel.org, famz@...hat.com
Subject: [PATCH 1/3] block: Return error in rescan_partitions if revalidating disk failed

If the disk can't read capacity, we should return an error.

Signed-off-by: Fam Zheng <famz@...hat.com>
---
 block/partition-generic.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/block/partition-generic.c b/block/partition-generic.c
index 0d9e5f9..1e60d7d 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -427,11 +427,11 @@ rescan:
 		return res;
 
 	if (disk->fops->revalidate_disk)
-		disk->fops->revalidate_disk(disk);
+		res = disk->fops->revalidate_disk(disk);
 	check_disk_size_change(disk, bdev);
 	bdev->bd_invalidated = 0;
-	if (!get_capacity(disk) || !(state = check_partition(disk, bdev)))
-		return 0;
+	if (res || !get_capacity(disk) || !(state = check_partition(disk, bdev)))
+		return res;
 	if (IS_ERR(state)) {
 		/*
 		 * I/O error reading the partition table.  If any
-- 
1.9.3

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