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authorLinus Torvalds <torvalds@linux-foundation.org>2016-07-06 09:12:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-06 09:12:43 -0700
commit4cdbbbd11f53c32f2359722148033b5e13dd33b5 (patch)
tree0238a9f3ed8be8718119003479301a5809259b78 /sound/soc/codecs/hdac_hdmi.c
parent4d0a279c7c9965d080c029f85b9e7fa4a8e1973e (diff)
parent9cd25743765cfe851aed8d655a62d60156aed293 (diff)
downloadlinux-4cdbbbd11f53c32f2359722148033b5e13dd33b5.tar.gz
Merge tag 'sound-4.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai: "Here are a collection of small fixes: at this time, we've got a slightly high amount, but all small and trivial fixes, and nothing scary can be seen there" * tag 'sound-4.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits) ALSA: hda/realtek: Add Lenovo L460 to docking unit fixup ALSA: timer: Fix negative queue usage by racy accesses ASoC: rt5645: fix reg-2f default value. ASoC: fsl_ssi: Fix number of words per frame for I2S-slave mode ALSA: au88x0: Fix calculation in vortex_wtdma_bufshift() ALSA: hda - Add PCI ID for Kabylake-H ALSA: echoaudio: Fix memory allocation ASoC: Intel: atom: fix missing breaks that would cause the wrong operation to execute ALSA: hda - fix read before array start ASoC: cx20442: set tty->receiver_room in v253_open ASoC: ak4613: Enable cache usage to fix crashes on resume ASoC: wm8940: Enable cache usage to fix crashes on resume ASoC: Intel: Skylake: Initialize module list for Broxton ASoC: wm5102: Correct supported channels on trace compressed DAI ASoC: wm5110: Add missing route from OUT3R to SYSCLK ASoC: rt5670: fix HP Playback Volume control ASoC: hdmi-codec: select CONFIG_HDMI ASoC: davinci-mcasp: Fix dra7 DMA offset when using CFG port ASoC: hdac_hdmi: Fix potential NULL dereference ASoC: ak4613: Remove owner assignment from platform_driver ...
Diffstat (limited to 'sound/soc/codecs/hdac_hdmi.c')
-rw-r--r--sound/soc/codecs/hdac_hdmi.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index 181cd3bf0b92..2abb742fc47b 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -1474,6 +1474,11 @@ static int hdmi_codec_probe(struct snd_soc_codec *codec)
* exit, we call pm_runtime_suspend() so that will do for us
*/
hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev));
+ if (!hlink) {
+ dev_err(&edev->hdac.dev, "hdac link not found\n");
+ return -EIO;
+ }
+
snd_hdac_ext_bus_link_get(edev->ebus, hlink);
ret = create_fill_widget_route_map(dapm);
@@ -1634,6 +1639,11 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
/* hold the ref while we probe */
hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev));
+ if (!hlink) {
+ dev_err(&edev->hdac.dev, "hdac link not found\n");
+ return -EIO;
+ }
+
snd_hdac_ext_bus_link_get(edev->ebus, hlink);
hdmi_priv = devm_kzalloc(&codec->dev, sizeof(*hdmi_priv), GFP_KERNEL);
@@ -1744,6 +1754,11 @@ static int hdac_hdmi_runtime_suspend(struct device *dev)
}
hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
+ if (!hlink) {
+ dev_err(dev, "hdac link not found\n");
+ return -EIO;
+ }
+
snd_hdac_ext_bus_link_put(ebus, hlink);
return 0;
@@ -1765,6 +1780,11 @@ static int hdac_hdmi_runtime_resume(struct device *dev)
return 0;
hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
+ if (!hlink) {
+ dev_err(dev, "hdac link not found\n");
+ return -EIO;
+ }
+
snd_hdac_ext_bus_link_get(ebus, hlink);
err = snd_hdac_display_power(bus, true);