From fb805ea785ddb712bcce2a6b2ae91ece90a3ecfa Mon Sep 17 00:00:00 2001
From: Scott Mitchell <rsm@FreeBSD.org>
Date: Mon, 6 Dec 2004 23:17:04 +0000
Subject: [PATCH] Properly release allocated resources if adw(4) device fails
 to fully attach, eg. if the firmware load fails.  Shortish MFC timeout so
 this can be merged before the 4.11 freeze.

PR:		kern/34306
Submitted by:	gibbs
Approved by:	gibbs, imp (mentor)
MFC after:	5 days
---
 sys/dev/advansys/adwcam.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/sys/dev/advansys/adwcam.c b/sys/dev/advansys/adwcam.c
index f4e7f4cfe91f..400c0fca5271 100644
--- a/sys/dev/advansys/adwcam.c
+++ b/sys/dev/advansys/adwcam.c
@@ -872,6 +872,26 @@ adw_free(struct adw_softc *adw)
 	case 0:
 		break;
 	}
+	
+	if (adw->regs != NULL)
+		bus_release_resource(adw->device,
+				     adw->regs_res_type,
+				     adw->regs_res_id,
+				     adw->regs);
+
+	if (adw->irq != NULL)
+		bus_release_resource(adw->device,
+				     adw->irq_res_type,
+				     0, adw->irq);
+
+	if (adw->sim != NULL) {
+		if (adw->path != NULL) {
+			xpt_async(AC_LOST_DEVICE, adw->path, NULL);
+			xpt_free_path(adw->path);
+		}
+		xpt_bus_deregister(cam_sim_path(adw->sim));
+		cam_sim_free(adw->sim, /*free_devq*/TRUE);
+	}
 	free(adw->name, M_DEVBUF);
 	free(adw, M_DEVBUF);
 }