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authorRussell King <rmk+kernel@armlinux.org.uk>2016-10-06 08:56:43 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2016-10-06 08:56:43 +0100
commit301a36fa700f9add6e14f5a95c7573e01578343a (patch)
tree6ff94ff3b08b838353b9127eb5f8055b3de6b25f /fs/block_dev.c
parentb828f960215f02e5d2c88bbd27565c694254a15a (diff)
parentb60752f2b20c167859943e001727f0d4da419b23 (diff)
downloadlinux-301a36fa700f9add6e14f5a95c7573e01578343a.tar.bz2
Merge branches 'misc' and 'sa1111-base' into for-linus
Diffstat (limited to 'fs/block_dev.c')
-rw-r--r--fs/block_dev.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c
index c3cdde87cc8c..08ae99343d92 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -249,7 +249,8 @@ struct super_block *freeze_bdev(struct block_device *bdev)
* thaw_bdev drops it.
*/
sb = get_super(bdev);
- drop_super(sb);
+ if (sb)
+ drop_super(sb);
mutex_unlock(&bdev->bd_fsfreeze_mutex);
return sb;
}
@@ -646,7 +647,7 @@ static struct dentry *bd_mount(struct file_system_type *fs_type,
{
struct dentry *dent;
dent = mount_pseudo(fs_type, "bdev:", &bdev_sops, NULL, BDEVFS_MAGIC);
- if (dent)
+ if (!IS_ERR(dent))
dent->d_sb->s_iflags |= SB_I_CGROUPWB;
return dent;
}