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* [PATCH] ext4: Remove never taken branch from ext4_ext_shift_path_extents()
@ 2014-10-22  9:15 Jan Kara
  2014-11-25 21:24 ` Theodore Ts'o
  0 siblings, 1 reply; 2+ messages in thread
From: Jan Kara @ 2014-10-22  9:15 UTC (permalink / raw)
  To: Ted Tso; +Cc: linux-ext4, Jan Kara

path[depth].p_hdr can never be NULL for a path passed to us (and even if
it could, EXT_LAST_EXTENT() would make something != NULL from it). So
just remove the branch.

Coverity-id: 1196498
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/ext4/extents.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 0b16fb4c06d3..31cd9b5c6419 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -5239,8 +5239,6 @@ ext4_ext_shift_path_extents(struct ext4_ext_path *path, ext4_lblk_t shift,
 				return -EIO;
 
 			ex_last = EXT_LAST_EXTENT(path[depth].p_hdr);
-			if (!ex_last)
-				return -EIO;
 
 			err = ext4_access_path(handle, inode, path + depth);
 			if (err)
-- 
1.8.1.4


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] ext4: Remove never taken branch from ext4_ext_shift_path_extents()
  2014-10-22  9:15 [PATCH] ext4: Remove never taken branch from ext4_ext_shift_path_extents() Jan Kara
@ 2014-11-25 21:24 ` Theodore Ts'o
  0 siblings, 0 replies; 2+ messages in thread
From: Theodore Ts'o @ 2014-11-25 21:24 UTC (permalink / raw)
  To: Jan Kara; +Cc: linux-ext4

On Wed, Oct 22, 2014 at 11:15:04AM +0200, Jan Kara wrote:
> path[depth].p_hdr can never be NULL for a path passed to us (and even if
> it could, EXT_LAST_EXTENT() would make something != NULL from it). So
> just remove the branch.
> 
> Coverity-id: 1196498
> Signed-off-by: Jan Kara <jack@suse.cz>

Applied, thanks.

						- Ted

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2014-10-22  9:15 [PATCH] ext4: Remove never taken branch from ext4_ext_shift_path_extents() Jan Kara
2014-11-25 21:24 ` Theodore Ts'o

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