[SCSI] zfcp: Fix linebreak in hba trace

Advance the correct pointer when inserting the linebreak for the HBA
trace. It was missing in the output since the pointer to the output
buffer was never advanced, and the linebreak character was overwritten
later.
Reviewed-by: NSwen Schillig <swen@vnet.ibm.com>
Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

drivers/s390/scsi/zfcp_dbf.c

@@ -327,7 +327,7 @@ static void zfcp_dbf_hba_view_response(char **p,
 			break;
 		zfcp_dbf_out(p, "scsi_cmnd", "0x%0Lx", r->u.fcp.cmnd);
 		zfcp_dbf_out(p, "scsi_serial", "0x%016Lx", r->u.fcp.serial);
-		p += sprintf(*p, "\n");
+		*p += sprintf(*p, "\n");
 		break;
 
 	case FSF_QTCB_OPEN_PORT_WITH_DID: