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path: root/drivers/usb/storage/protocol.c
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Diffstat (limited to 'drivers/usb/storage/protocol.c')
-rw-r--r--drivers/usb/storage/protocol.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c
index 93c1a4d86f5..82dd834709c 100644
--- a/drivers/usb/storage/protocol.c
+++ b/drivers/usb/storage/protocol.c
@@ -59,7 +59,9 @@
void usb_stor_pad12_command(struct scsi_cmnd *srb, struct us_data *us)
{
- /* Pad the SCSI command with zeros out to 12 bytes
+ /*
+ * Pad the SCSI command with zeros out to 12 bytes. If the
+ * command already is 12 bytes or longer, leave it alone.
*
* NOTE: This only works because a scsi_cmnd struct field contains
* a unsigned char cmnd[16], so we know we have storage available
@@ -67,9 +69,6 @@ void usb_stor_pad12_command(struct scsi_cmnd *srb, struct us_data *us)
for (; srb->cmd_len<12; srb->cmd_len++)
srb->cmnd[srb->cmd_len] = 0;
- /* set command length to 12 bytes */
- srb->cmd_len = 12;
-
/* send the command to the transport layer */
usb_stor_invoke_transport(srb, us);
}