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* [PATCH][next] ASoC: rt5677: Add missing null check for failed allocation of rt5677_dsp
@ 2019-10-24 12:46 ` Colin King
  0 siblings, 0 replies; 9+ messages in thread
From: Colin King @ 2019-10-24 12:46 UTC (permalink / raw)
  To: Bard Liao, Oder Chiou, Liam Girdwood, Mark Brown,
	Jaroslav Kysela, Takashi Iwai, Curtis Malainey, Ben Zhang,
	alsa-devel
  Cc: kernel-janitors, linux-kernel

From: Colin Ian King <colin.king@canonical.com>

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 <colin.king@canonical.com>
---
 sound/soc/codecs/rt5677-spi.c | 2 ++
 1 file changed, 2 insertions(+)

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);
-- 
2.20.1


^ permalink raw reply related	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2019-10-25 10:18 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-10-24 12:46 [PATCH][next] ASoC: rt5677: Add missing null check for failed allocation of rt5677_dsp Colin King
2019-10-24 12:46 ` [alsa-devel] " Colin King
2019-10-24 12:46 ` Colin King
2019-10-24 17:15 ` Curtis Malainey
2019-10-24 17:15   ` [alsa-devel] " Curtis Malainey
2019-10-24 17:15   ` Curtis Malainey
2019-10-25 10:12 ` Applied "ASoC: rt5677: Add missing null check for failed allocation of rt5677_dsp" to the asoc tree Mark Brown
2019-10-25 10:12   ` [alsa-devel] " Mark Brown
2019-10-25 10:12   ` Mark Brown

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