patchset against 2.6.23-rc3.
corrects missing ioremap return checks and balancing on iounmap calls,
integrated changes per list
recommendations on the original set of patches..
Warning -- cleanup handler here may miss additional required cleanup as has
occurred on other
portions of ioremap audit.
This patch had been submitted previously but hushmail client caused wordwrap
issues, resending
with different mail client.
Signed-off-by: Scott Thompson <postfail <at> hushmail.com>
----------------------------------------------------------
diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index 923174c..448488b 100644
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -177,8 +177,13 @@ static int drm_addmap_core(struct drm_device * dev,
unsigned
MTRR_TYPE_WRCOMB, 1);
}
}
- if (map->type == _DRM_REGISTERS)
+ if (map->type == _DRM_REGISTERS){
map->handle = ioremap(map->offset, map->size);
+ if (!map->handle) {
+ drm_free(map, sizeof(*map), DRM_MEM_MAPS);
+ return -ENOMEM;
+ }
+ }
break;
case _DRM_SHM:
list = drm_find_matching_map(dev, map);
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