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drm/i915: fix error return code in init_pipe_control()

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Fix to return -ENOMEM in the kmap() error handling case
instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Wei Yongjun 2013-05-28 17:51:44 +08:00 committed by Daniel Vetter
parent 6b1c087ba5
commit 56b085a01b
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/i915/intel_ringbuffer.c
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@ -464,9 +464,11 @@ init_pipe_control(struct intel_ring_buffer *ring)
goto err_unref;
pc->gtt_offset = obj->gtt_offset;
pc->cpu_page = kmap(sg_page(obj->pages->sgl));
if (pc->cpu_page == NULL)
pc->cpu_page = kmap(sg_page(obj->pages->sgl));
if (pc->cpu_page == NULL) {
ret = -ENOMEM;
goto err_unpin;
}
DRM_DEBUG_DRIVER("%s pipe control offset: 0x%08x\n",
ring->name, pc->gtt_offset);