From: bodefang <bodef...@126.com>
Similar to commit <789d4c300>("drm/msm: don't deref error pointer in the
msm_fbdev_create error path")
the error pointer returned by omap_framebuffer_init gets passed to
drm_framebuffer_remove.
The latter handles only Null pointers,thus a nasty crash will occur.
Signed-off-by: bodefang <bodef...@126.com>
---
drivers/gpu/drm/omapdrm/omap_fbdev.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c
b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index 3f6cfc2..372afd4 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -141,8 +141,7 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
* to unref the bo:
*/
drm_gem_object_put(fbdev->bo);
- ret = PTR_ERR(fb);
- goto fail;
+ return PTR_ERR(fb);
}
/* note: this keeps the bo pinned.. which is perhaps not ideal,
@@ -200,10 +199,7 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
fail:
- if (ret) {
- if (fb)
- drm_framebuffer_remove(fb);
- }
+ drm_framebuffer_remove(fb);
return ret;
}
--
2.7.4
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