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| author | Bard Liao <bardliao@realtek.com> | 2015-02-05 16:40:33 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-02-05 18:17:12 +0000 |
| commit | 28d1ad09c50c758d3e295fa7ff90a4712e1254ea (patch) | |
| tree | 5d107d6d0f9d6a8e94f6193660ef35b9f7b8fc94 /sound | |
| parent | 54d96a40e0dfb5aa2eea0b010ddc1c7e8742e364 (diff) | |
| download | linux-28d1ad09c50c758d3e295fa7ff90a4712e1254ea.tar.gz linux-28d1ad09c50c758d3e295fa7ff90a4712e1254ea.tar.bz2 linux-28d1ad09c50c758d3e295fa7ff90a4712e1254ea.zip | |
ASoC: rt286: Fix potencial crash in jd function
We assign rt286->codec in rt286_probe. If rt286_jack_detect is
invoked before rt286_probe, rt286->codec will be NULL and cause
a kernel panic.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/rt286.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c index 847cc4b9bee5..f14d335b07b1 100644 --- a/sound/soc/codecs/rt286.c +++ b/sound/soc/codecs/rt286.c @@ -305,6 +305,8 @@ static int rt286_jack_detect(struct rt286_priv *rt286, bool *hp, bool *mic) *hp = false; *mic = false; + if (!rt286->codec) + return -EINVAL; if (rt286->pdata.cbj_en) { regmap_read(rt286->regmap, RT286_GET_HP_SENSE, &buf); *hp = buf & 0x80000000; |