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

[CGEL]

From: Jing Yangyang <jing.yangyang@xxxxxxxxxx>

Fix the following coccicheck warning:
./drivers/block/ataflop.c:1439:20-21:WARNING: comparing pointer to 0

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Jing Yangyang <jing.yangyang@xxxxxxxxxx>
---
 drivers/block/ataflop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index a093644..6cd28df 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1436,7 +1436,7 @@ static int floppy_revalidate(struct gendisk *disk)
 
 	if (test_bit(drive, &changed_floppies) ||
 	    test_bit(drive, &fake_change) ||
-	    p->disktype == 0) {
+	    !p->disktype) {
 		if (UD.flags & FTD_MSG)
 			printk(KERN_ERR "floppy: clear format %p!\n", UDT);
 		BufferDrive = -1;
-- 
1.8.3.1