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drm/i915: Do not unlock upon error in i915_gem_idle() 

We never took the lock ourselves and all callers expect the struct_mutex
to be locked upon return (be it success or error), thereore dropping the
lock along the error paths looks to be a vestigial error from

commit db1b76ca6a
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Jul 9 16:51:37 2013 +0200

    drm/i915: don't frob mm.suspended when not using ums

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2013-09-13 23:57:04 +01:00 committed by Daniel Vetter
parent b205ca5721
commit f740334775
1 changed files with 3 additions and 6 deletions
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9
drivers/gpu/drm/i915/i915_gem.c
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@ -4232,16 +4232,13 @@ i915_gem_idle(struct drm_device *dev)
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
if (dev_priv->ums.mm_suspended) {
mutex_unlock(&dev->struct_mutex);
if (dev_priv->ums.mm_suspended)
return 0;
}
ret = i915_gpu_idle(dev);
if (ret) {
mutex_unlock(&dev->struct_mutex);
if (ret)
return ret;
}
i915_gem_retire_requests(dev);
/* Under UMS, be paranoid and evict. */