From 8ee0df0d0695f87075a77b0dc9f5f594b7ec423f Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sat, 16 May 2015 16:17:51 +0900 Subject: [PATCH] staging: rts5208: fix transfer length 0 for 6-byte r/w commands For 6-byte r/w commands, transfer length 0 means 256 blocks of data, not 0 block. Signed-off-by: Akinobu Mita Cc: Micky Ching Cc: Greg Kroah-Hartman Cc: linux-scsi@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rts5208/rtsx_scsi.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/staging/rts5208/rtsx_scsi.c b/drivers/staging/rts5208/rtsx_scsi.c index 8a5d6a8e780f..60871f3022b1 100644 --- a/drivers/staging/rts5208/rtsx_scsi.c +++ b/drivers/staging/rts5208/rtsx_scsi.c @@ -915,6 +915,8 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip) start_sec = ((u32)(srb->cmnd[1] & 0x1F) << 16) | ((u32)srb->cmnd[2] << 8) | ((u32)srb->cmnd[3]); sec_cnt = srb->cmnd[4]; + if (sec_cnt == 0) + sec_cnt = 256; } else if ((srb->cmnd[0] == VENDOR_CMND) && (srb->cmnd[1] == SCSI_APP_CMD) && ((srb->cmnd[2] == PP_READ10) || (srb->cmnd[2] == PP_WRITE10))) { @@ -2904,9 +2906,11 @@ void led_shine(struct scsi_cmnd *srb, struct rtsx_chip *chip) if ((srb->cmnd[0] == READ_10) || (srb->cmnd[0] == WRITE_10)) sec_cnt = ((u16)(srb->cmnd[7]) << 8) | srb->cmnd[8]; - else if ((srb->cmnd[0] == READ_6) || (srb->cmnd[0] == WRITE_6)) + else if ((srb->cmnd[0] == READ_6) || (srb->cmnd[0] == WRITE_6)) { sec_cnt = srb->cmnd[4]; - else + if (sec_cnt == 0) + sec_cnt = 256; + } else return; if (chip->rw_cap[lun] >= GPIO_TOGGLE_THRESHOLD) {