Set sb->s_root to NULL when failing from __getname(),
so that we can avoid double dput and unnecessary operations
in generic_shutdown_super().
Signed-off-by: Chengguang Xu <cgxu...@gmail.com>
---
drivers/staging/erofs/super.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/staging/erofs/super.c b/drivers/staging/erofs/super.c
index 15c784fba879..c8981662a49b 100644
--- a/drivers/staging/erofs/super.c
+++ b/drivers/staging/erofs/super.c
@@ -459,6 +459,7 @@ static int erofs_read_super(struct super_block *sb,
*/
err_devname:
dput(sb->s_root);
+ sb->s_root = NULL;
err_iget:
#ifdef EROFS_FS_HAS_MANAGED_CACHE
iput(sbi->managed_cache);
--
2.20.1
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