From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Mauro Carvalho Chehab <mchehab@osg.samsung.com>,
linux-media@vger.kernel.org
Cc: LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org,
Julia Lawall <julia.lawall@lip6.fr>
Subject: [PATCH 1/2] [media] DVB: Delete an unnecessary check before the function call "dvb_unregister_device"
Date: Tue, 03 Feb 2015 17:22:14 +0100 [thread overview]
Message-ID: <54D0F5B6.7010608@users.sourceforge.net> (raw)
In-Reply-To: <54D0F4F3.1040405@users.sourceforge.net>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Tue, 3 Feb 2015 16:01:40 +0100
The dvb_unregister_device() 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/media/dvb-core/dvb_ca_en50221.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c
index 0aac309..b999689 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -1726,8 +1726,7 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter,
error:
if (ca != NULL) {
- if (ca->dvbdev != NULL)
- dvb_unregister_device(ca->dvbdev);
+ dvb_unregister_device(ca->dvbdev);
kfree(ca->slot_info);
kfree(ca);
}
--
2.2.2
next prev parent reply other threads:[~2015-02-03 16:22 UTC|newest]
Thread overview: 43+ 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>
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[not found] ` <alpine.DEB.2.02.1402262129250.2221@localhost6.localdomain6>
[not found] ` <5317A59D.4@users.sourceforge.net>
2014-11-20 8:19 ` [PATCH 0/3] [media] DVB-frontends: Deletion of a few unnecessary checks SF Markus Elfring
2014-11-20 8:29 ` [PATCH 2/3] [media] m88ds3103: One function call less in m88ds3103_init() after error detection SF Markus Elfring
2014-11-20 8:33 ` [PATCH 1/3] [media] DVB-frontends: Deletion of unnecessary checks before the function call "release_firmware" SF Markus Elfring
2014-11-20 8:39 ` [PATCH 3/3] [media] si2168: One function call less in si2168_init() after error detection SF Markus Elfring
2014-11-20 9:55 ` [PATCH 1/1] [media] firewire: Deletion of an unnecessary check before the function call "dvb_unregister_device" SF Markus Elfring
2014-11-20 14:41 ` Stefan Richter
2014-11-20 10:20 ` [PATCH 1/1] [media] i2c: Deletion of an unnecessary check before the function call "rc_unregister_device" SF Markus Elfring
2014-11-20 10:50 ` [PATCH 1/1] [media] platform: Deletion of unnecessary checks before two function calls SF Markus Elfring
2014-11-20 12:08 ` [PATCH 1/1] [media] rc: " SF Markus Elfring
2014-11-20 12:33 ` [PATCH 1/1] [media] USB: Deletion of unnecessary checks before three " SF Markus Elfring
2014-11-24 21:40 ` [PATCH 1/1] [media] Siano: Deletion of an unnecessary check before the function call "rc_unregister_device" SF Markus Elfring
2014-11-30 20:21 ` [PATCH 0/2] [media] tuners: Deletion of two unnecessary checks SF Markus Elfring
2014-11-30 20:25 ` [PATCH 1/2] [media] tuners: Deletion of unnecessary checks before the function call "release_firmware" SF Markus Elfring
2014-11-30 20:28 ` [PATCH 2/2] [media] tuners-si2157: One function call less in si2157_init() after error detection SF Markus Elfring
2014-11-30 21:55 ` [PATCH 1/1] [media] ddbridge: Deletion of an unnecessary check before the function call "dvb_unregister_device" SF Markus Elfring
2014-11-30 22:23 ` [PATCH 1/1] [media] V4L2: Deletion of an unnecessary check before the function call "vb2_put_vma" SF Markus Elfring
2014-12-01 9:46 ` Marek Szyprowski
2014-12-01 18:55 ` [PATCH 1/1] [media] lirc_zilog: Deletion of unnecessary checks before the function call "vfree" SF Markus Elfring
2014-12-01 22:30 ` [PATCH 0/2] [media] mn88473: Delete an unnecessary check SF Markus Elfring
2014-12-01 22:33 ` [PATCH 1/2] [media] mn88473: Deletion of an unnecessary check before the function call "release_firmware" SF Markus Elfring
2014-12-01 22:35 ` [PATCH 2/2] [media] mn88473: One function call less in mn88473_init() after error detection SF Markus Elfring
2015-02-01 19:11 ` [PATCH 0/2] [media] mn88472: Delete an unnecessary check SF Markus Elfring
2015-02-01 19:16 ` [PATCH 1/2] [media] mn88472: Deletion of an unnecessary check before the function call "release_firmware" SF Markus Elfring
2015-02-01 19:18 ` [PATCH 2/2] [media] mn88472: One function call less in mn88472_init() after error detection SF Markus Elfring
2015-02-02 12:44 ` [media] staging: bcm2048: Delete an unnecessary check before the function call "video_unregister_device" SF Markus Elfring
2015-02-03 14:10 ` [PATCH] [media] sp2: Delete an unnecessary check before the function call "kfree" SF Markus Elfring
2015-02-03 14:31 ` [PATCH] [media] V4L2: Delete an unnecessary check before the function call "media_entity_put" SF Markus Elfring
2015-02-03 16:18 ` [PATCH 0/2] DVB: Deletion of a few unnecessary checks SF Markus Elfring
2015-02-03 16:22 ` SF Markus Elfring [this message]
2015-02-03 16:23 ` [PATCH 2/2] [media] DVB: Less function calls in dvb_ca_en50221_init() after error detection SF Markus Elfring
2015-02-03 17:45 ` [PATCH] [media] stk-webcam: Delete an unnecessary check before the function call "vfree" SF Markus Elfring
2015-02-03 18:03 ` [PATCH] [media] au0828: Delete unnecessary checks before the function call "video_unregister_device" SF Markus Elfring
2015-11-05 18:45 ` [PATCH 0/2] [media] c8sectpfe: Deletion of a few unnecessary checks SF Markus Elfring
2015-11-05 18:49 ` [PATCH 1/2] [media] c8sectpfe: Delete unnecessary checks before two function calls SF Markus Elfring
2015-11-05 18:50 ` [PATCH 2/2] [media] c8sectpfe: Combine three checks into a single if block SF Markus Elfring
2015-11-06 10:09 ` walter harms
2015-11-06 7:50 ` [PATCH 0/2] [media] c8sectpfe: Deletion of a few unnecessary checks Maxime Coquelin
2016-07-17 20:16 ` [PATCH] [media] tw686x-kh: Delete an unnecessary check before the function call "video_unregister_device" SF Markus Elfring
2016-07-22 10:16 ` Krzysztof Hałasa
2016-07-17 21:00 ` [PATCH] [media] cec: Delete an unnecessary check before the function call "rc_free_device" SF Markus Elfring
2016-07-19 18:02 ` [PATCH] [media] v4l2-common: Delete an unnecessary check before the function call "spi_unregister_device" SF Markus Elfring
2016-07-19 18:36 ` walter harms
2016-07-19 19:35 ` [PATCH] [media] tw686x: Delete an unnecessary check before the function call "video_unregister_device" SF Markus Elfring
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