linux-kernel - [PATCH 3/3] ath9k: Adjust a null pointer check in three functions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <6c3d87e0-d758-6f9b-4b1f-156d890b788d@users.sourceforge.net>
Date:   Tue, 9 May 2017 09:29:04 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     ath9k-devel@....qualcomm.com, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, Kalle Valo <kvalo@...eaurora.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 3/3] ath9k: Adjust a null pointer check in three functions

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 8 May 2017 22:17:13 +0200

The script "checkpatch.pl" pointed information out like the following.

Comparison to NULL could be written "!buf"

Thus adjust this expression.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/net/wireless/ath/ath9k/debug.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 0d215598193c..5f2c1d8e8e70 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -161,7 +161,7 @@ static ssize_t read_file_ani(struct file *file, char __user *user_buf,
 	};
 
 	buf = kzalloc(size, GFP_KERNEL);
-	if (buf == NULL)
+	if (!buf)
 		return -ENOMEM;
 
 	len += scnprintf(buf + len, size - len, "%15s: %s\n", "ANI",
@@ -315,7 +315,7 @@ static ssize_t read_file_antenna_diversity(struct file *file,
 	};
 
 	buf = kzalloc(size, GFP_KERNEL);
-	if (buf == NULL)
+	if (!buf)
 		return -ENOMEM;
 
 	if (!(pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)) {
@@ -1008,7 +1008,7 @@ static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
 	size_t retval;
 
 	buf = kzalloc(size, GFP_KERNEL);
-	if (buf == NULL)
+	if (!buf)
 		return -ENOMEM;
 
 	if (!sc->sc_ah->common.btcoex_enabled) {
-- 
2.12.2