All of lore.kernel.org
 help / color / mirror / Atom feed
From: Gargi Sharma <gs051095@gmail.com>
To: outreachy-kernel@googlegroups.com
Cc: gregkh@linuxfoundation.org, Gargi Sharma <gs051095@gmail.com>
Subject: [PATCH] staging: rtl8188eu: replace explicit NULL comparison
Date: Fri, 24 Feb 2017 01:10:51 +0530	[thread overview]
Message-ID: <1487878851-27132-1-git-send-email-gs051095@gmail.com> (raw)

Replace explicit NULL comparison with ! operator to
simplify code.

Found with Coccinelle script:
@@
expression ptr;
position p;
statement s0;
@@

ptr@p =
\(kmalloc\|devm_kzalloc\|kmalloc_array\|devm_ioremap\|usb_alloc_urb\|
alloc_netdev\|dev_alloc_skb\)(...)
... when != ptr

if (
(
+ !
ptr
- == NULL
)
) s0

Signed-off-by: Gargi Sharma <gs051095@gmail.com>
---
 drivers/staging/rtl8188eu/os_dep/xmit_linux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8188eu/os_dep/xmit_linux.c b/drivers/staging/rtl8188eu/os_dep/xmit_linux.c
index e097c61..8bf8248 100644
--- a/drivers/staging/rtl8188eu/os_dep/xmit_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/xmit_linux.c
@@ -72,7 +72,7 @@ int rtw_os_xmit_resource_alloc(struct adapter *padapter, struct xmit_buf *pxmitb
 
 	for (i = 0; i < 8; i++) {
 		pxmitbuf->pxmit_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
-		if (pxmitbuf->pxmit_urb[i] == NULL) {
+		if (!pxmitbuf->pxmit_urb[i]) {
 			DBG_88E("pxmitbuf->pxmit_urb[i]==NULL");
 			return _FAIL;
 		}
-- 
2.7.4



             reply	other threads:[~2017-02-23 19:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-23 19:40 Gargi Sharma [this message]
2017-02-23 19:55 ` [Outreachy kernel] [PATCH] staging: rtl8188eu: replace explicit NULL comparison Julia Lawall

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1487878851-27132-1-git-send-email-gs051095@gmail.com \
    --to=gs051095@gmail.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=outreachy-kernel@googlegroups.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.