[PATCH] scsi: qedf: Cleanup the type of io_log->op

[Dan Carpenter]

We store sc_cmd->cmnd[0] which is an unsigned char in io_log->op so
this should also be unsigned char.  The other thing is that this is
displayed in the debugfs:

        seq_printf(s, "0x%02x:", io_log->op);

Smatch complains that the formatting won't work for negative values so
changing it to unsigned silences that warning as well.

Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h
index 40aeb6bb96a2..07ee88200e91 100644
--- a/drivers/scsi/qedf/qedf.h
+++ b/drivers/scsi/qedf/qedf.h
@@ -259,7 +259,7 @@ struct qedf_io_log {
        uint16_t task_id;
        uint32_t port_id; /* Remote port fabric ID */
        int lun;
-       char op; /* SCSI CDB */
+       unsigned char op; /* SCSI CDB */
        uint8_t lba[4];
        unsigned int bufflen; /* SCSI buffer length */
        unsigned int sg_count; /* Number of SG elements */