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drm/vmwgfx: convert to idr_alloc()

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Convert to the much saner new idr interface.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tejun Heo 2013-02-27 17:04:14 -08:00 committed by Linus Torvalds
parent 36888db247
commit cc39a8faed
1 changed files with 8 additions and 9 deletions
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17
drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
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@ -177,17 +177,16 @@ int vmw_resource_alloc_id(struct vmw_resource *res)
BUG_ON(res->id != -1); BUG_ON(res->id != -1);
do { idr_preload(GFP_KERNEL);
if (unlikely(idr_pre_get(idr, GFP_KERNEL) == 0)) write_lock(&dev_priv->resource_lock);
return -ENOMEM;
write_lock(&dev_priv->resource_lock); ret = idr_alloc(idr, res, 1, 0, GFP_NOWAIT);
ret = idr_get_new_above(idr, res, 1, &res->id); if (ret >= 0)
write_unlock(&dev_priv->resource_lock); res->id = ret;
} while (ret == -EAGAIN); write_unlock(&dev_priv->resource_lock);
idr_preload_end();
return ret; return ret < 0 ? ret : 0;
} }
/** /**