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i915_gem: return -EFAULT if copy_to_user fails

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commit c877cdce93 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dan Carpenter
2010-06-23 19:03:01 +02:00
committed by Greg Kroah-Hartman
parent 9cd74cb517
commit 079908f18d
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/i915/i915_gem.c
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@@ -3667,6 +3667,7 @@ i915_gem_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;
}
}