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Commit f0e3cc87 authored by Meng Wang's avatar Meng Wang Committed by Gerrit - the friendly Code Review server
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ASoC: core: Fix possible NULL pointer dereference 



SSR is triggered when the system does not have a sound card
registered, but has codecs. The pointer card sent from codec driver
to snd_soc_card_change_online_state is NULL.
Add null check for soc_card before dereferencing.

Change-Id: I23342a6cbd9d53e62b2ea11dfe79aad3759df6f0
Signed-off-by: default avatarMeng Wang <mwang@codeaurora.org>
parent 87a38fb7

sound/soc/soc-core.c

+2 −1
Original line number Diff line number Diff line
@@ -3296,6 +3296,7 @@ EXPORT_SYMBOL_GPL(snd_soc_lookup_component); 
 */

void snd_soc_card_change_online_state(struct snd_soc_card *soc_card, int online)

{

	if (soc_card && soc_card->snd_card)

		snd_card_change_online_state(soc_card->snd_card, online);

}

EXPORT_SYMBOL(snd_soc_card_change_online_state);