Commit ed0739b5 authored Apr 18, 2016 by Libin Yang Committed by Takashi Iwai Apr 18, 2016

ALSA - hda: hdmi check NULL pointer in hdmi_set_chmap



Make sure per_pin is not NULL before using it.

Fixes: 9b3dc8aa ('ALSA: hda - Register chmap obj as priv data instead of codec')
Signed-off-by: Libin Yang <libin.yang@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

parent 50fd4987

sound/pci/hda/patch_hdmi.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1858,6 +1858,8 @@ static void hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
		struct hdmi_spec *spec = codec->spec;
		struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);

		if (!per_pin)
		return;
		mutex_lock(&per_pin->lock);
		per_pin->chmap_set = true;
		memcpy(per_pin->chmap, chmap, ARRAY_SIZE(per_pin->chmap));