[PATCH] scsi: mac53c94: fix warning comparing pointer to 0

[Haowen Bai <baihaowen@xxxxxxxxx>]

Fix the following coccicheck warning:
drivers/scsi/mac53c94.c:237:12-13: WARNING comparing pointer to 0

Signed-off-by: Haowen Bai <baihaowen@xxxxxxxxx>
---
 drivers/scsi/mac53c94.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c
index 3976a18..a087f82 100644
--- a/drivers/scsi/mac53c94.c
+++ b/drivers/scsi/mac53c94.c
@@ -234,7 +234,7 @@ static void mac53c94_interrupt(int irq, void *dev_id)
 		++mac53c94_errors;
 		writeb(CMD_NOP + CMD_DMA_MODE, &regs->command);
 	}
-	if (cmd == 0) {
+	if (!cmd) {
 		printk(KERN_DEBUG "53c94: interrupt with no command active?\n");
 		return;
 	}
-- 
2.7.4