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i915: return -EFAULT if copy_to_user fails
author
Dan Carpenter
<error27@gmail.com>
Wed, 23 Jun 2010 17:03:01 +0000
(19:03 +0200)
committer
Chris Wilson
<chris@chris-wilson.co.uk>
Mon, 6 Sep 2010 22:09:54 +0000
(23:09 +0100)
copy_to_user() returns the number of bytes remaining to be copied and
I'm pretty sure we want to return a negative error code here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
drivers/gpu/drm/i915/i915_gem.c
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diff --git
a/drivers/gpu/drm/i915/i915_gem.c
b/drivers/gpu/drm/i915/i915_gem.c
index
68526f4
..
748c263
100644
(file)
--- a/
drivers/gpu/drm/i915/i915_gem.c
+++ b/
drivers/gpu/drm/i915/i915_gem.c
@@
-3588,6
+3588,7
@@
i915_gem_do_execbuffer(struct drm_device *dev, void *data,
if (ret != 0) {
DRM_ERROR("copy %d cliprects failed: %d\n",
args->num_cliprects, ret);
+ ret = -EFAULT;
goto pre_mutex_err;
}
}