agp/intel: Fix wrong kunmap in i830_cleanup()
Add a missing NULL check and fix the wrong address passed to kunmap() in i830_cleanup(). Cc: stable@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de> [danvet: added cc stable] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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@ -812,8 +812,10 @@ static int intel_fake_agp_fetch_size(void)
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static void i830_cleanup(void)
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{
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kunmap(intel_private.i8xx_page);
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intel_private.i8xx_flush_page = NULL;
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if (intel_private.i8xx_flush_page) {
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kunmap(intel_private.i8xx_flush_page);
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intel_private.i8xx_flush_page = NULL;
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}
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__free_page(intel_private.i8xx_page);
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intel_private.i8xx_page = NULL;
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