From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>,
"David S. Miller" <davem@davemloft.net>,
Lauro Ramos Venancio <lauro.venancio@openbossa.org>,
Samuel Ortiz <sameo@linux.intel.com>,
Vincent Cuissard <cuissard@marvell.com>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Cc: LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org,
Julia Lawall <julia.lawall@lip6.fr>
Subject: [PATCH] NFC-nci: Delete unnecessary checks before the function call "kfree_skb"
Date: Sat, 14 Nov 2015 22:50:31 +0100 [thread overview]
Message-ID: <5647ACA7.3000905@users.sourceforge.net> (raw)
In-Reply-To: <5317A59D.4@users.sourceforge.net>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 14 Nov 2015 22:42:48 +0100
The kfree_skb() function tests whether its argument is NULL and then
returns immediately. Thus the test around the calls is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
net/nfc/nci/uart.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/net/nfc/nci/uart.c b/net/nfc/nci/uart.c
index 21d8875..106ecc1 100644
--- a/net/nfc/nci/uart.c
+++ b/net/nfc/nci/uart.c
@@ -199,11 +199,8 @@ static void nci_uart_tty_close(struct tty_struct *tty)
if (!nu)
return;
- if (nu->tx_skb)
- kfree_skb(nu->tx_skb);
- if (nu->rx_skb)
- kfree_skb(nu->rx_skb);
-
+ kfree_skb(nu->tx_skb);
+ kfree_skb(nu->rx_skb);
skb_queue_purge(&nu->tx_q);
nu->ops.close(nu);
--
2.6.2
next prev parent reply other threads:[~2015-11-14 21:50 UTC|newest]
Thread overview: 51+ 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 15:50 ` [PATCH 1/1] net: brcm80211: Deletion of unnecessary checks before two function calls SF Markus Elfring
2014-11-20 18:04 ` Arend van Spriel
2015-11-06 7:58 ` [PATCH] net: brcm80211: Delete an unnecessary check before the function call "release_firmware" SF Markus Elfring
2015-11-11 9:18 ` Arend van Spriel
2015-11-26 12:04 ` brcm80211: Delete an unnecessary check before the function call"release_firmware" Kalle Valo
2015-02-04 16:45 ` [PATCH 0/2] CW1200: Deletion of an unnecessary check SF Markus Elfring
2015-02-04 16:47 ` [PATCH 1/2] CW1200: Delete an unnecessary check before the function call "release_firmware" SF Markus Elfring
2015-02-06 6:49 ` [1/2] cw1200: " Kalle Valo
2015-02-04 16:48 ` [PATCH 2/2] CW1200: Less function calls in cw1200_load_firmware_cw1200() after error detection SF Markus Elfring
2015-02-04 17:54 ` [PATCH] ath9k: Delete an unnecessary check before the function call "relay_close" SF Markus Elfring
2015-02-06 6:50 ` ath9k: Delete an unnecessary check before the function call"relay_close" Kalle Valo
2015-02-04 18:33 ` [PATCH] ath10k: Delete unnecessary checks before the function call "release_firmware" SF Markus Elfring
2015-03-04 12:06 ` Kalle Valo
2015-02-04 18:56 ` [PATCH] orinoco: Delete an unnecessary check before the function call "kfree" SF Markus Elfring
2015-02-06 6:51 ` Kalle Valo
2015-02-04 19:10 ` [PATCH] HostAP: " SF Markus Elfring
2015-02-06 6:52 ` hostap: " Kalle Valo
2015-02-04 19:40 ` [PATCH] net: brcm80211: Delete unnecessary checks before two function calls SF Markus Elfring
2015-02-06 6:53 ` Kalle Valo
2015-06-27 14:29 ` [PATCH 0/2] staging: wilc1000: Deletion of two unnecessary checks SF Markus Elfring
2015-06-27 14:36 ` [PATCH 1/2] staging: wilc1000: Delete unnecessary checks before two function calls SF Markus Elfring
2015-07-07 2:31 ` Greg Kroah-Hartman
2015-07-07 6:21 ` Clarification for the use of additional fields in the message body SF Markus Elfring
2015-07-07 6:40 ` Frans Klaver
2015-07-07 7:54 ` SF Markus Elfring
2015-07-07 8:23 ` Frans Klaver
2015-07-07 11:53 ` SF Markus Elfring
2015-07-07 14:13 ` Frans Klaver
2015-07-07 16:15 ` SF Markus Elfring
2015-07-07 23:43 ` Julian Calaby
2015-07-08 7:09 ` SF Markus Elfring
2015-07-08 7:36 ` Julian Calaby
2015-07-08 9:28 ` SF Markus Elfring
2015-07-08 11:05 ` Julian Calaby
2015-07-08 13:46 ` SF Markus Elfring
2015-07-08 23:47 ` Julian Calaby
2015-07-08 15:03 ` Theodore Ts'o
2015-07-08 15:27 ` SF Markus Elfring
2015-07-09 16:51 ` Theodore Ts'o
2015-06-27 14:37 ` [PATCH 2/2] staging: wilc1000: One function call less in mac_ioctl() after error detection SF Markus Elfring
2015-06-27 16:21 ` Julia Lawall
2015-07-07 2:31 ` Greg Kroah-Hartman
2015-07-08 8:40 ` SF Markus Elfring
2016-07-24 20:15 ` [PATCH 0/3] staging: wilc1000: Fine-tuning for two function implementations SF Markus Elfring
2016-07-24 20:20 ` [PATCH 1/3] staging: wilc1000: Delete an unnecessary check before the function call "release_firmware" SF Markus Elfring
2016-07-24 20:22 ` [PATCH 2/3] staging: wilc1000: One function call less in mac_ioctl() after error detection SF Markus Elfring
2016-07-28 12:02 ` Julian Calaby
2016-07-24 20:23 ` [PATCH 3/3] staging: wilc1000: Reduce scope for a few variables in mac_ioctl() SF Markus Elfring
2015-11-14 21:50 ` SF Markus Elfring [this message]
2015-11-16 12:18 ` [PATCH] rtlwifi: Delete unnecessary checks before the function call "kfree_skb" SF Markus Elfring
2015-11-26 13:01 ` rtlwifi: Delete unnecessary checks before the function call"kfree_skb" Kalle Valo
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