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-xxxx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index 2940bd7..e836aee 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -1727,6 +1727,8 @@ static int tw_scsiop_read_write(TW_Device_Extension *tw_dev, int request_id)
if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6) {
lba = ((u32)srb->cmnd[1] << 16) | ((u32)srb->cmnd[2] << 8) | (u32)srb->cmnd[3];
num_sectors = (u32)srb->cmnd[4];
+ if (num_sectors == 0)
+ num_sectors = 256;
} else {
lba = ((u32)srb->cmnd[2] << 24) | ((u32)srb->cmnd[3] << 16) | ((u32)srb->cmnd[4] << 8) | (u32)srb->cmnd[5];
num_sectors = (u32)srb->cmnd[8] | ((u32)srb->cmnd[7] << 8);
--
1.9.1
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