From: Colin Ian King Date: Thu, 24 Oct 2019 12:46:10 +0000 (+0100) Subject: ASoC: rt5677: Add missing null check for failed allocation of rt5677_dsp X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=f8a60435703bdde8f8a0ceb1aa8dad59df821583;p=openwrt%2Fstaging%2Fblogic.git ASoC: rt5677: Add missing null check for failed allocation of rt5677_dsp The allocation of rt5677_dsp can potentially fail and return null, so add a null check and return -ENOMEM on a memory allocation failure. Addresses-Coverity: ("Dereference null return") Fixes: a0e0d135427c ("ASoC: rt5677: Add a PCM device for streaming hotword via SPI") Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20191024124610.18182-1-colin.king@canonical.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/codecs/rt5677-spi.c b/sound/soc/codecs/rt5677-spi.c index 36c02d200cfc..3a17643fcd9f 100644 --- a/sound/soc/codecs/rt5677-spi.c +++ b/sound/soc/codecs/rt5677-spi.c @@ -376,6 +376,8 @@ static int rt5677_spi_pcm_probe(struct snd_soc_component *component) rt5677_dsp = devm_kzalloc(component->dev, sizeof(*rt5677_dsp), GFP_KERNEL); + if (!rt5677_dsp) + return -ENOMEM; rt5677_dsp->dev = &g_spi->dev; mutex_init(&rt5677_dsp->dma_lock); INIT_DELAYED_WORK(&rt5677_dsp->copy_work, rt5677_spi_copy_work);