Messages in this thread Patch in this message | | | From | Richard Genoud <> | Subject | [RFC PATCH 11/13] sound: atmel-pcm-dma: check pointer before dereference | Date | Mon, 1 Jul 2013 10:39:36 +0200 |
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If platform_data is NULL, filter() is called with a NULL slave parameter.
Signed-off-by: Richard Genoud <richard.genoud@gmail.com> --- sound/soc/atmel/atmel-pcm-dma.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/sound/soc/atmel/atmel-pcm-dma.c b/sound/soc/atmel/atmel-pcm-dma.c index 1d38fd0..b20dbba 100644 --- a/sound/soc/atmel/atmel-pcm-dma.c +++ b/sound/soc/atmel/atmel-pcm-dma.c @@ -96,6 +96,9 @@ static bool filter(struct dma_chan *chan, void *slave) { struct at_dma_slave *sl = slave; + if (!sl) + return false; + if (sl->dma_dev == chan->device->dev) { chan->private = sl; return true; -- 1.7.10.4
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