[PATCH linux-next] macintosh: fix warning comparing pointer to 0

[jing yangyang]

Fix the following coccicheck warning:

./drivers/macintosh/windfarm_pm91.c:152:12-13:WARNING comparing pointer to 0

Reported-by: Zeal Robot <zealci at zte.com.cn>
Signed-off-by: jing yangyang <jing.yangyang at zte.com.cn>
---
 drivers/macintosh/windfarm_pm91.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/macintosh/windfarm_pm91.c b/drivers/macintosh/windfarm_pm91.c
index 3f346af..568f8a2 100644
--- a/drivers/macintosh/windfarm_pm91.c
+++ b/drivers/macintosh/windfarm_pm91.c
@@ -149,7 +149,7 @@ static void wf_smu_create_cpu_fans(void)
 
 	/* First, locate the PID params in SMU SBD */
 	hdr = smu_get_sdb_partition(SMU_SDB_CPUPIDDATA_ID, NULL);
-	if (hdr == 0) {
+	if (!hdr) {
 		printk(KERN_WARNING "windfarm: CPU PID fan config not found "
 		       "max fan speed\n");
 		goto fail;
-- 
1.8.3.1