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[PATCH] fs-ext4: Delete unnecessary checks before the function call "iput"

From SF Markus Elfring <elfring@users.sourceforge.net>
Newsgroups linux.kernel
Subject [PATCH] fs-ext4: Delete unnecessary checks before the function call "iput"
Date 2015-11-04 19:00 +0100
Message-ID <qravM-3Aq-7@gated-at.bofh.it> (permalink)
References (12 earlier) <mSsDN-4wa-59@gated-at.bofh.it> <mSsDN-4wa-61@gated-at.bofh.it> <mSsDN-4wa-63@gated-at.bofh.it> <mSsDN-4wa-65@gated-at.bofh.it> <mSsDN-4wa-33@gated-at.bofh.it>
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 4 Nov 2015 18:48:38 +0100

The iput() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 fs/ext4/resize.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index ad62d7a..7918012 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1942,10 +1942,10 @@ retry:
 		err = ext4_convert_meta_bg(sb, resize_inode);
 		if (err)
 			goto out;
-		if (resize_inode) {
-			iput(resize_inode);
-			resize_inode = NULL;
-		}
+
+		iput(resize_inode);
+		resize_inode = NULL;
+
 		if (n_blocks_count_retry) {
 			n_blocks_count = n_blocks_count_retry;
 			n_blocks_count_retry = 0;
@@ -2011,8 +2011,7 @@ retry:
 out:
 	if (flex_gd)
 		free_flex_gd(flex_gd);
-	if (resize_inode != NULL)
-		iput(resize_inode);
+	iput(resize_inode);
 	ext4_msg(sb, KERN_INFO, "resized filesystem to %llu", n_blocks_count);
 	return err;
 }
-- 
2.6.2

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[PATCH] fs-ext4: Delete unnecessary checks before the function call  "iput" SF Markus Elfring <elfring@users.sourceforge.net> - 2015-11-04 19:00 +0100

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