[PATCH] macintosh: smu: Fix warning comparing pointer to 0

[Haowen Bai]

Avoid pointer type value compared with 0 to make code clear.

Signed-off-by: Haowen Bai <baihaowen at meizu.com>
---
 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 a4fbc3f..d72d073 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -1087,7 +1087,7 @@ 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;
@@ -1254,7 +1254,7 @@ 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) {
@@ -1277,7 +1277,7 @@ 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;
-- 
2.7.4