svn commit: r195685 - head/sys/cam/scsi

[Ed Maste]

Author: emaste
Date: Tue Jul 14 17:26:37 2009
New Revision: 195685
URL: http://svn.freebsd.org/changeset/base/195685

Log:
  Fix leaks in probestart, probedone, and scsi_scan_bus.  Also free
  page_list using the matching malloc type for the allocation.
  
  Approved by:	re
  Reviewed by:	scottl [1]
  MFC after:	1 week
  
  [1] Original patch was against xpt_cam.c, prior to the cam refactoring.

Modified:
  head/sys/cam/scsi/scsi_xpt.c

Modified: head/sys/cam/scsi/scsi_xpt.c
==============================================================================
--- head/sys/cam/scsi/scsi_xpt.c	Tue Jul 14 17:11:06 2009	(r195684)
+++ head/sys/cam/scsi/scsi_xpt.c	Tue Jul 14 17:26:37 2009	(r195685)
@@ -836,8 +836,11 @@ probestart(struct cam_periph *periph, un
 
 		serial_buf = NULL;
 		device = periph->path->device;
-		device->serial_num = NULL;
-		device->serial_num_len = 0;
+		if (device->serial_num != NULL) {
+			free(device->serial_num, M_CAMXPT);
+			device->serial_num = NULL;
+			device->serial_num_len = 0;
+		}
 
 		serial_buf = (struct scsi_vpd_unit_serial_number *)
 			malloc(sizeof(*serial_buf), M_CAMXPT, M_NOWAIT|M_ZERO);
@@ -1176,7 +1179,7 @@ probedone(struct cam_periph *periph, uni
 		}
 
 		if (page_list != NULL)
-			free(page_list, M_DEVBUF);
+			free(page_list, M_CAMXPT);
 
 		if (serialnum_supported) {
 			xpt_release_ccb(done_ccb);
@@ -1561,6 +1564,7 @@ scsi_scan_bus(struct cam_periph *periph,
 			}
 			work_ccb = xpt_alloc_ccb_nowait();
 			if (work_ccb == NULL) {
+				xpt_free_ccb((union ccb *)scan_info->cpi);
 				free(scan_info, M_CAMXPT);
 				xpt_free_path(path);
 				request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
@@ -1682,6 +1686,7 @@ scsi_scan_bus(struct cam_periph *periph,
 			}
 
 			if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) {
+				xpt_free_ccb(request_ccb);
 				break;
 			}
 			status = xpt_create_path(&path, xpt_periph,