linux-kernel - [PATCH linux-next] drivers:smu: fix warning comparing pointer to 0

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Date:   Tue, 24 Aug 2021 23:18:38 -0700
From:   CGEL <cgel.zte@...il.com>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        Wang Wensheng <wangwensheng4@...wei.com>,
        Qinglang Miao <miaoqinglang@...wei.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Jing Yangyang <jing.yangyang@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] drivers:smu: fix warning comparing pointer to 0

From: Jing Yangyang <jing.yangyang@....com.cn>

Fix the following coccicheck warning:
./drivers/macintosh/smu.c:1089: 11-12:
 WARNING comparing pointer to 0, suggest !E
./drivers/macintosh/smu.c:1256:11-12:
WARNING comparing pointer to 0

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Jing Yangyang <jing.yangyang@....com.cn>
---
 drivers/macintosh/smu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 94fb63a..6cd0fef 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -1086,7 +1086,7 @@ static int smu_open(struct inode *inode, struct file *file)
 	unsigned long flags;
 
 	pp = kzalloc(sizeof(struct smu_private), GFP_KERNEL);
-	if (pp == 0)
+	if (!pp)
 		return -ENOMEM;
 	spin_lock_init(&pp->lock);
 	pp->mode = smu_file_commands;
@@ -1253,7 +1253,7 @@ static __poll_t smu_fpoll(struct file *file, poll_table *wait)
 	__poll_t mask = 0;
 	unsigned long flags;
 
-	if (pp == 0)
+	if (!pp)
 		return 0;
 
 	if (pp->mode == smu_file_commands) {
@@ -1276,7 +1276,7 @@ static int smu_release(struct inode *inode, struct file *file)
 	unsigned long flags;
 	unsigned int busy;
 
-	if (pp == 0)
+	if (!pp)
 		return 0;
 
 	file->private_data = NULL;
-- 
1.8.3.1