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| author | Ingo Molnar <mingo@kernel.org> | 2017-10-20 11:02:05 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-10-20 11:02:05 +0200 |
| commit | ca4b9c3b743da39a6e0756a5c68edb35f6fc5e53 (patch) | |
| tree | 95ce0819f92e25bc4d768ab13cee1f385a83a7b2 /sound/hda/hdac_controller.c | |
| parent | kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y (diff) | |
| parent | Merge tag 'perf-urgent-for-mingo-4.14-20171019' of git://git.kernel.org/pub/s... (diff) | |
| download | linux-ca4b9c3b743da39a6e0756a5c68edb35f6fc5e53.tar.xz linux-ca4b9c3b743da39a6e0756a5c68edb35f6fc5e53.zip | |
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/hda/hdac_controller.c')
| -rw-r--r-- | sound/hda/hdac_controller.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c index 978dc1801b3a..f6d2985b2520 100644 --- a/sound/hda/hdac_controller.c +++ b/sound/hda/hdac_controller.c @@ -284,6 +284,11 @@ int snd_hdac_bus_parse_capabilities(struct hdac_bus *bus) dev_dbg(bus->dev, "HDA capability ID: 0x%x\n", (cur_cap & AZX_CAP_HDR_ID_MASK) >> AZX_CAP_HDR_ID_OFF); + if (cur_cap == -1) { + dev_dbg(bus->dev, "Invalid capability reg read\n"); + break; + } + switch ((cur_cap & AZX_CAP_HDR_ID_MASK) >> AZX_CAP_HDR_ID_OFF) { case AZX_ML_CAP_ID: dev_dbg(bus->dev, "Found ML capability\n"); |