[PATCH 3/4] drivers/gpu/drm/i915/i915_gem.c: Add missing error handling code
Julia Lawall
julia at diku.dk
Sat Oct 2 06:59:17 PDT 2010
Extend the error handling code with operations found in other nearby error
handling code
A simplified version of the sematic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
@r@
statement S1,S2,S3;
constant C1,C2,C3;
@@
*if (...)
{... S1 return -C1;}
...
*if (...)
{... when != S1
return -C2;}
...
*if (...)
{... S1 return -C3;}
// </smpl>
Signed-off-by: Julia Lawall <julia at diku.dk>
---
This is only a suggestion. All of the other ways out of this function call
these two functions. But I don't understand the code well enough to know
why, or whether there is a reason not to do it in this case.
drivers/gpu/drm/i915/i915_gem.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index bced9b2..cfe5978 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3258,6 +3258,8 @@ i915_gem_object_pin_and_relocate(struct drm_gem_object *obj,
(int) reloc->offset,
reloc->read_domains,
reloc->write_domain);
+ drm_gem_object_unreference(target_obj);
+ i915_gem_object_unpin(obj);
return -EINVAL;
}
if (reloc->write_domain & I915_GEM_DOMAIN_CPU ||
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