Fix spelling of Hav'nt in comments.

Signed-off-by: Zhang Jiaming <jiaming@nfschina.com>
---
 drivers/scsi/ch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index 908854869864..0a3011595fbf 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -127,7 +127,7 @@ static const struct {
 	unsigned char  ascq;
 	int	       errno;
 } ch_err[] = {
-/* Just filled in what looks right. Hav'nt checked any standard paper for
+/* Just filled in what looks right. Haven't checked any standard paper for
    these errno assignments, so they may be wrong... */
 	{
 		.sense  = ILLEGAL_REQUEST,
-- 
2.34.1