staging/rts5208: fix incorrect shift to extract upper nybble

The mask of sns_key_info1 suggests the upper nybble is being extracted
however the following shift of 8 bits is too large and always results in
0.  Fix this by shifting only by 4 bits to correctly get the upper nybble.

Detected by CoverityScan, CID#142891 ("Operands don't affect result")

Fixes: fa590c222fba ("staging: rts5208: add support for rts5208 and rts5288")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/staging/rts5208/rtsx_scsi.c b/drivers/staging/rts5208/rtsx_scsi.c
index 36b5a11f21d2..a401b13f5f5e 100644
--- a/drivers/staging/rts5208/rtsx_scsi.c
+++ b/drivers/staging/rts5208/rtsx_scsi.c
@@ -414,7 +414,7 @@ void set_sense_data(struct rtsx_chip *chip, unsigned int lun, u8 err_code,
         sense->ascq = ascq;
         if (sns_key_info0 != 0) {
                 sense->sns_key_info[0] = SKSV | sns_key_info0;
-                sense->sns_key_info[1] = (sns_key_info1 & 0xf0) >> 8;
+                sense->sns_key_info[1] = (sns_key_info1 & 0xf0) >> 4;
                 sense->sns_key_info[2] = sns_key_info1 & 0x0f;
         }
 }