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-rw-r--r--fs/ubifs/super.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 84f3c7fd1552..522c3fd7eb3c 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1684,6 +1684,9 @@ static void ubifs_put_super(struct super_block *sb)
ubifs_msg("un-mount UBI device %d, volume %d", c->vi.ubi_num,
c->vi.vol_id);
+
+ lock_kernel();
+
/*
* The following asserts are only valid if there has not been a failure
* of the media. For example, there will be dirty inodes if we failed
@@ -1750,6 +1753,8 @@ static void ubifs_put_super(struct super_block *sb)
ubi_close_volume(c->ubi);
mutex_unlock(&c->umount_mutex);
kfree(c);
+
+ unlock_kernel();
}
static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)