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From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Brian Norris <computersforpeace@gmail.com>,
	David Woodhouse <dwmw2@infradead.org>,
	linux-mtd@lists.infradead.org
Cc: Julia Lawall <julia.lawall@lip6.fr>,
	kernel-janitors@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/1] MTD: Deletion of unnecessary checks before two function calls
Date: Thu, 20 Nov 2014 13:55:23 +0100	[thread overview]
Message-ID: <546DE4BB.3000900@users.sourceforge.net> (raw)
In-Reply-To: <5317A59D.4@users.sourceforge.net>

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Thu, 20 Nov 2014 13:50:43 +0100

The functions kfree() and pci_dev_put() test whether their argument is NULL
and then return 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/mtd/chips/cfi_cmdset_0001.c | 3 +--
 drivers/mtd/devices/pmc551.c        | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 3096f3d..286b97a 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -2654,8 +2654,7 @@ static void cfi_intelext_destroy(struct mtd_info *mtd)
 	kfree(cfi);
 	for (i = 0; i < mtd->numeraseregions; i++) {
 		region = &mtd->eraseregions[i];
-		if (region->lockmap)
-			kfree(region->lockmap);
+		kfree(region->lockmap);
 	}
 	kfree(mtd->eraseregions);
 }
diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c
index f02603e..708b7e8 100644
--- a/drivers/mtd/devices/pmc551.c
+++ b/drivers/mtd/devices/pmc551.c
@@ -812,8 +812,7 @@ static int __init init_pmc551(void)
 	}
 
 	/* Exited early, reference left over */
-	if (PCI_Device)
-		pci_dev_put(PCI_Device);
+	pci_dev_put(PCI_Device);
 
 	if (!pmc551list) {
 		printk(KERN_NOTICE "pmc551: not detected\n");
-- 
2.1.3

       reply	other threads:[~2014-11-20 12:56 UTC|newest]

Thread overview: 15+ 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>
2014-11-20 12:55                                 ` SF Markus Elfring [this message]
2014-11-26  6:50                                   ` [PATCH 1/1] MTD: Deletion of unnecessary checks before two function calls Brian Norris
2015-01-18 17:08                                 ` [PATCH] MTD: Deletion of checks before the function call "iounmap" SF Markus Elfring
2015-01-19 17:58                                   ` Brian Norris
2015-01-19 18:19                                     ` SF Markus Elfring
2015-01-19 18:30                                       ` Brian Norris
2015-01-19 19:07                                         ` SF Markus Elfring
2015-01-19 20:31                                           ` Brian Norris
2015-01-19 22:00                                             ` SF Markus Elfring
2015-01-22  9:03                                               ` Brian Norris
2015-01-22 16:28                                                 ` SF Markus Elfring
2015-01-19 18:20                                     ` Dan Carpenter
2015-01-19 18:32                                       ` Brian Norris
2015-11-04 19:10                                 ` [PATCH] UBIFS: Delete unnecessary checks before the function call "iput" SF Markus Elfring
2015-11-06 22:15                                   ` Richard Weinberger

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