[PATCH] Check the mtd device in do_emergency_remount().

Allow superblocks managed by the mtd layer to be remounted.

Signed-off-by: Michael Trimarchi <michael@evidence.eu.com>

---
 fs/super.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/super.c b/fs/super.c
index 09008db..2f8f924 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -627,7 +627,8 @@ static void do_emergency_remount(unsigned long foo)
 		sb->s_count++;
 		spin_unlock(&sb_lock);
 		down_read(&sb->s_umount);
-		if (sb->s_root && sb->s_bdev && !(sb->s_flags & MS_RDONLY)) {
+		if (sb->s_root && (sb->s_bdev || sb->s_mtd)
+		   && !(sb->s_flags & MS_RDONLY)) {
 			/*
 			 * ->remount_fs needs lock_kernel().
 			 *
-- 
1.5.3.6