Commit 990ec812 authored Jun 19, 2018 by Vatsal Bucha

ASoC: Fix NULL pointer dereference in digital suspend



If soundcard registration has failed because of custom
driver probe failure and at the same time
msm_dig_suspend is called, this will lead to
null pointer dereference when component is accessed.
Add NULL check to avoid this.

CRs-Fixed: 2263005
Change-Id: If04ec624e45f05ebe08ee6500ccb13e3c8287051
Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>

parent 73c9a214

asoc/codecs/sdm660_cdc/msm-digital-cdc.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -2563,6 +2563,10 @@ static int msm_dig_suspend(struct device *dev)
		pr_debug("%s:digcodec not initialized, return\n", __func__);
		return 0;
		}
		if (!registered_digcodec->component.card) {
		pr_debug("%s:component not initialized, return\n", __func__);
		return 0;
		}
		pdata = snd_soc_card_get_drvdata(registered_digcodec->component.card);
		if (!pdata) {
		pr_debug("%s:card not initialized, return\n", __func__);