[PATCH v2] xfs_io: syncfs can fail

[Jeff Layton <jlayton@kernel.org>]

From: Jeff Layton <jlayton@redhat.com>

syncfs can return an error. Report one if it does. Also, ensure that
xfs_io will exit with a non-zero status in that case.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
---
 io/sync.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

v2: also set exitcode when reporting error

diff --git a/io/sync.c b/io/sync.c
index c77263804a35..20ab50a7fcd4 100644
--- a/io/sync.c
+++ b/io/sync.c
@@ -41,8 +41,10 @@ syncfs_f(
 	int			argc,
 	char			**argv)
 {
-	/* syncfs can't fail */
-	syncfs(file->fd);
+	if (syncfs(file->fd) < 0) {
+		perror("syncfs");
+		exitcode = 1;
+	}
 	return 0;
 }
 #endif
-- 
2.17.0