fs: Make iput() accept NULL pointers

Let iput() accept NULL pointers so that users do not have to test for
it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/fs.c b/fs/fs.c
index d8389323aa..cecb3d70e0 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -1087,6 +1087,9 @@ void iget_failed(struct inode *inode)
 
 void iput(struct inode *inode)
 {
+	if (!inode)
+		return;
+
 	if (!inode->i_count)
 		return;