Commit edf09883 authored Apr 30, 2014 by Phani Kumar Uppalapati Committed by Gerrit - the friendly Code Review server May 02, 2014

ASoC: wcd9330: Avoid NULL pointer access



It is possible that codec private data will
be accessed without creating memory when
sound card is not registered. Avoid kernel
crash by checking it for NULL and return without
access.

CRs-Fixed: 657811
Change-Id: I4d8636252d2b75aa964eaf0c1b3d44e3f0976771
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>

parent 32e5112c

sound/soc/codecs/wcd9330.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -7328,6 +7328,11 @@ static int tomtom_resume(struct device *dev)
		{
		struct platform_device *pdev = to_platform_device(dev);
		struct tomtom_priv *tomtom = platform_get_drvdata(pdev);

		if (!tomtom) {
		dev_err(dev, "%s: tomtom private data is NULL\n", __func__);
		return -EINVAL;
		}
		dev_dbg(dev, "%s: system resume\n", __func__);
		/* Notify */
		wcd9xxx_resmgr_notifier_call(&tomtom->resmgr,