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Commit 8d860221 authored by Vatsal Bucha's avatar Vatsal Bucha Committed by Gerrit - the friendly Code Review server
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wcd934x: Fix NULL pointer dereference for wcd9xxx pointer 



During bind/unbind of ngd_msm_ctrl power_gate_digital_core
is called. Simultaneously tavil_remove is also called
making tavil pointer as NULL.  Check for tavil as not NULL
at the start of function to avoid NULL pointer dereference.

CRs-Fixed: 2267796
Change-Id: I6fc476cc8b706b556836f30838983de0f34d4fc1
Signed-off-by: default avatarVatsal Bucha <vbucha@codeaurora.org>
parent ffb86ea0

asoc/codecs/wcd934x/wcd934x.c

+2 −0
Original line number Diff line number Diff line
@@ -8939,6 +8939,8 @@ static struct snd_soc_dai_driver tavil_i2s_dai[] = { 


static void tavil_codec_power_gate_digital_core(struct tavil_priv *tavil)

{

	if (!tavil)

		return;

	mutex_lock(&tavil->power_lock);

	dev_dbg(tavil->dev, "%s: Entering power gating function, %d\n",

		__func__, tavil->power_active_ref);