linux-kernel - [PATCH 1/1] kernel-trace: Deletion of an unnecessary check before the function call "iput"

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Message-ID: <5468ABBD.6000903@users.sourceforge.net>
Date:	Sun, 16 Nov 2014 14:50:53 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Ingo Molnar <mingo@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org, Coccinelle <cocci@...teme.lip6.fr>
Subject: [PATCH 1/1] kernel-trace: Deletion of an unnecessary check before
 the function call "iput"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 16 Nov 2014 14:46:28 +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@...rs.sourceforge.net>
---
 kernel/trace/trace_uprobe.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 33ff6a2..ec002c0 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -552,8 +552,7 @@ error:
 	return ret;
 
 fail_address_parse:
-	if (inode)
-		iput(inode);
+	iput(inode);
 
 	pr_info("Failed to parse address or file.\n");
 
-- 
2.1.3


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