Module Name:    src
Committed By:   riastradh
Date:           Sun Feb 14 03:06:06 UTC 2016

Modified Files:
        src/sys/external/bsd/drm2/dist/drm/nouveau/core/subdev/bar:
            nouveau_subdev_bar_base.c

Log Message:
Fix bus_space_subregion error branch.

Return error code, not 0 (!), on bus_space_subregion failure.

In answer to `XXX error branch' comment: if nouveau_barobj_ctor
fails, then the caller will call nouveau_barobj_dtor too.  So there's
no leak here.

Unlikely to fix any observed bugs with nouveau -- there's no error
branch in the Linux side here.  But maybe it will catch some other
bug earlier.


To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 \
    
src/sys/external/bsd/drm2/dist/drm/nouveau/core/subdev/bar/nouveau_subdev_bar_base.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/external/bsd/drm2/dist/drm/nouveau/core/subdev/bar/nouveau_subdev_bar_base.c
diff -u src/sys/external/bsd/drm2/dist/drm/nouveau/core/subdev/bar/nouveau_subdev_bar_base.c:1.3 src/sys/external/bsd/drm2/dist/drm/nouveau/core/subdev/bar/nouveau_subdev_bar_base.c:1.4
--- src/sys/external/bsd/drm2/dist/drm/nouveau/core/subdev/bar/nouveau_subdev_bar_base.c:1.3	Sun Oct 18 15:42:00 2015
+++ src/sys/external/bsd/drm2/dist/drm/nouveau/core/subdev/bar/nouveau_subdev_bar_base.c	Sun Feb 14 03:06:06 2016
@@ -1,4 +1,4 @@
-/*	$NetBSD: nouveau_subdev_bar_base.c,v 1.3 2015/10/18 15:42:00 jmcneill Exp $	*/
+/*	$NetBSD: nouveau_subdev_bar_base.c,v 1.4 2016/02/14 03:06:06 riastradh Exp $	*/
 
 /*
  * Copyright 2012 Red Hat Inc.
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_bar_base.c,v 1.3 2015/10/18 15:42:00 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_bar_base.c,v 1.4 2016/02/14 03:06:06 riastradh Exp $");
 
 #include <core/object.h>
 
@@ -66,9 +66,11 @@ nouveau_barobj_ctor(struct nouveau_objec
 
 #ifdef __NetBSD__
 	barobj->iomemt = bar->iomemt;
-	if (bus_space_subregion(bar->iomemt, bar->iomemh, barobj->vma.offset,
-		bar->iomemsz - barobj->vma.offset, &barobj->iomemh) != 0)
-		/* XXX error branch */
+	/* XXX errno NetBSD->Linux */
+	ret = -bus_space_subregion(bar->iomemt, bar->iomemh,
+	    barobj->vma.offset, bar->iomemsz - barobj->vma.offset,
+	    &barobj->iomemh);
+	if (ret)
 		return ret;
 #else
 	barobj->iomem = bar->iomem + (u32)barobj->vma.offset;

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