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From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	linuxppc-dev@lists.ozlabs.org
Cc: Julia Lawall <julia.lawall@lip6.fr>,
	kernel-janitors@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH] macintosh: Delete an unnecessary check before the function call "of_node_put"
Date: Wed, 04 Feb 2015 21:36:00 +0100	[thread overview]
Message-ID: <54D282B0.90907@users.sourceforge.net> (raw)
In-Reply-To: <5317A59D.4@users.sourceforge.net>

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 4 Feb 2015 21:32:27 +0100

The of_node_put() 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>
---
 drivers/macintosh/smu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 10ae69b..d531f80 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -557,8 +557,7 @@ int __init smu_init (void)
 	return 0;
 
 fail_msg_node:
-	if (smu->msg_node)
-		of_node_put(smu->msg_node);
+	of_node_put(smu->msg_node);
 fail_db_node:
 	of_node_put(smu->db_node);
 fail_bootmem:
-- 
2.2.2

  parent reply	other threads:[~2015-02-04 20:41 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <5307CAA2.8060406@users.sourceforge.net>
     [not found] ` <alpine.DEB.2.02.1402212321410.2043@localhost6.localdomain6>
     [not found]   ` <530A086E.8010901@users.sourceforge.net>
     [not found]     ` <alpine.DEB.2.02.1402231635510.1985@localhost6.localdomain6>
     [not found]       ` <530A72AA.3000601@users.sourceforge.net>
     [not found]         ` <alpine.DEB.2.02.1402240658210.2090@localhost6.localdomain6>
     [not found]           ` <530B5FB6.6010207@users.sourceforge.net>
     [not found]             ` <alpine.DEB.2.10.1402241710370.2074@hadrien>
     [not found]               ` <530C5E18.1020800@users.sourceforge.net>
     [not found]                 ` <alpine.DEB.2.10.1402251014170.2080@hadrien>
     [not found]                   ` <530CD2C4.4050903@users.sourceforge.net>
     [not found]                     ` <alpine.DEB.2.10.1402251840450.7035@hadrien>
     [not found]                       ` <530CF8FF.8080600@users.sourceforge.net>
     [not found]                         ` <alpine.DEB.2.02.1402252117150.2047@localhost6.localdomain6>
     [not found]                           ` <530DD06F.4090703@users.sourceforge.net>
     [not found]                             ` <alpine.DEB.2.02.1402262129250.2221@localhost6.localdomain6>
     [not found]                               ` <5317A59D.4@users.sourceforge.net>
2014-11-21 11:45                                 ` [PATCH 1/1] tty-hvsi_lib: Deletion of an unnecessary check before the function call "tty_kref_put" SF Markus Elfring
2014-11-22 15:26                                 ` [PATCH 1/1] PowerPC-83xx: Deletion of an unnecessary check before the function call "of_node_put" SF Markus Elfring
2014-12-02 21:55                                 ` [PATCH] ALSA: i2sbus: Deletion of unnecessary checks before the function call "release_and_free_resource" SF Markus Elfring
2014-12-03  6:59                                   ` Takashi Iwai
     [not found]                                 ` <54A9355F.4050102@users.sourceforge.net>
2015-01-04 13:21                                   ` [PATCH 9/13] ALSA: i2sbus: Delete an unnecessary check before the function call "snd_pcm_suspend_all" SF Markus Elfring
2015-01-04 13:36                                   ` [PATCH 11/13] ALSA: Deletion of checks before the function call "iounmap" SF Markus Elfring
2015-01-05 13:58                                     ` Dan Carpenter
2016-10-26 12:26                                     ` Dan Carpenter
2016-10-26 12:28                                       ` Johannes Berg
2016-10-26 12:42                                         ` Dan Carpenter
2015-02-03 13:00                                 ` [PATCH] PowerPC-PCI: Delete unnecessary checks before the function call "kfree" SF Markus Elfring
2015-02-03 13:38                                 ` [PATCH] PowerPC-rheap: Delete an unnecessary check " SF Markus Elfring
2015-02-04 20:36                                 ` SF Markus Elfring [this message]
2015-06-30  8:13                                   ` [PATCH] macintosh: Delete an unnecessary check before the function call "of_node_put" SF Markus Elfring
2015-11-06 10:05                                 ` [PATCH] cxl: Delete an unnecessary check before the function call "kfree" SF Markus Elfring
2015-11-08 22:56                                   ` Andrew Donnellan
2015-11-09  2:09                                   ` Ian Munsie
2016-04-13 13:33                                   ` Michael Ellerman
2016-07-20 13:20                                 ` [PATCH] cxl: Delete an unnecessary check before the function call "of_node_put" SF Markus Elfring
2016-07-20 13:38                                   ` Julia Lawall
2016-07-27  8:57                                     ` Andrew Donnellan
2016-07-29  3:55                                       ` [PATCH] cxl: replace loop with for_each_child_of_node(), remove unneeded of_node_put() Andrew Donnellan
2016-07-29  7:43                                         ` Frederic Barrat
2016-07-29  8:46                                         ` walter harms
2016-07-29  8:49                                           ` Julia Lawall
2016-07-29 11:38                                         ` Michael Ellerman
2016-08-01 13:34                                           ` Frederic Barrat
2016-10-05  2:36                                         ` Michael Ellerman

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