diff options
| author | Xiaojun Sang <xsang@codeaurora.org> | 2016-09-20 16:22:49 +0800 |
|---|---|---|
| committer | Xiaojun Sang <xsang@codeaurora.org> | 2016-09-23 00:06:45 +0800 |
| commit | 17d98dbde125ffb11511673105ac2d1fd2a9d826 (patch) | |
| tree | 7a84a5a6dd45ba384a2bc9f98e84ef2025dec957 | |
| parent | 4e2a8a0fa1c78712904312e13ef33d02be78d421 (diff) | |
ASoC: wcd: add null check before pointer dereference
Slimbus device pointer may be null, which may lead to
null pointer dereference.
CRs-Fixed: 1054973
Signed-off-by: Xiaojun Sang <xsang@codeaurora.org>
Change-Id: Ica22ee19f281fa0cff7d629f396c41c935692c59
| -rw-r--r-- | drivers/mfd/wcd9xxx-core.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mfd/wcd9xxx-core.c b/drivers/mfd/wcd9xxx-core.c index 981d372277ee..5bcd0db929b3 100644 --- a/drivers/mfd/wcd9xxx-core.c +++ b/drivers/mfd/wcd9xxx-core.c @@ -1219,6 +1219,11 @@ static int wcd9xxx_slim_probe(struct slim_device *slim) intf_type = wcd9xxx_get_intf_type(); + if (!slim) { + ret = -EINVAL; + goto err; + } + if (intf_type == WCD9XXX_INTERFACE_TYPE_I2C) { dev_dbg(&slim->dev, "%s:Codec is detected in I2C mode\n", __func__); |