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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 <akinobu.mita@gmail.com>
Cc: Micky Ching <micky_ching@realsil.com.cn>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Akinobu Mita 2015-05-16 16:17:51 +09:00 committed by Greg Kroah-Hartman
parent 07d783fd83
commit 8ee0df0d06
1 changed files with 6 additions and 2 deletions
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8
drivers/staging/rts5208/rtsx_scsi.c
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@ -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) {