From 132bf6723749f7219c399831eeb286dbbb985429 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Tue, 6 Nov 2018 07:50:50 -0800
Subject: [PATCH] xfs: Fix error code in 'xfs_ioc_getbmap()'
Git-commit: 132bf6723749f7219c399831eeb286dbbb985429
Patch-mainline: v4.20-rc2
References: git-fixes

In this function, once 'buf' has been allocated, we unconditionally
return 0.
However, 'error' is set to some error codes in several error handling
paths.
Before commit 232b51948b99 ("xfs: simplify the xfs_getbmap interface")
this was not an issue because all error paths were returning directly,
but now that some cleanup at the end may be needed, we must propagate the
error code.

Fixes: 232b51948b99 ("xfs: simplify the xfs_getbmap interface")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Acked-by: Anthony Iliopoulos <ailiopoulos@suse.com>

---
 fs/xfs/xfs_ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 6e2c08f30f60..6ecdbb3af7de 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1608,7 +1608,7 @@ xfs_ioc_getbmap(
 	error = 0;
 out_free_buf:
 	kmem_free(buf);
-	return 0;
+	return error;
 }
 
 struct getfsmap_info {
-- 
2.16.3