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
next parent 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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