For 6-byte r/w commands, transfer length 0 means 256 blocks of data,
not 0 block.
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Adam Radford <linuxraid@xxxxxxx>
Cc: linux-scsi@xxxxxxxxxxxxxxx
---
drivers/scsi/3w-9xxx.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index add419d..71ddb7f 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1870,8 +1870,11 @@ static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id,
}
if (srb) {
- if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6)
+ if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6) {
num_sectors = (u32)srb->cmnd[4];
+ if (num_sectors == 0)
+ num_sectors = 256;
+ }
if (srb->cmnd[0] == READ_10 || srb->cmnd[0] == WRITE_10)
num_sectors = (u32)srb->cmnd[8] | ((u32)srb->cmnd[7] << 8);
--
1.9.1
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