[PATCH] drm/i915: fix simple_return.cocci warnings

[kbuild test robot]

drivers/gpu/drm/i915/i915_gem_gtt.c:1349:1-4: WARNING: end returns can be simpified and declaration on line 1347 can be dropped

 Simplify a trivial if-return sequence.  Possibly combine with a
 preceding function call.
Generated by: scripts/coccinelle/misc/simple_return.cocci

CC: Michel Thierry <michel.thierry@xxxxxxxxx>
Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---

 i915_gem_gtt.c |    8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1344,13 +1344,7 @@ err_out:
 
 static int gen6_ppgtt_alloc(struct i915_hw_ppgtt *ppgtt)
 {
-	int ret;
-
-	ret = gen6_ppgtt_allocate_page_directories(ppgtt);
-	if (ret)
-		return ret;
-
-	return 0;
+	return gen6_ppgtt_allocate_page_directories(ppgtt);
 }
 
 static void gen6_scratch_va_range(struct i915_hw_ppgtt *ppgtt,
--
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