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ASoC: Intel: do cast earlier in sst_cdev_tstamp()

PATCH Applied Dan Carpenter 2 participants 2 messages Apr 9, 2015

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Sound Kernel janitors ASoC Intel ASoC drivers
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Dan Carpenter

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#0 lore raw

PATCH 1/1 ASoC: Intel: do cast earlier in sst_cdev_tstamp()

My static checker complains about these because it looks like the multiply can overflow and then we cast to a larger data type. I don't think this is a problem, but it's also harmless to do the cast earlier so let's silence the static checker warning.

Signed-off-by Dan Carpenter <[email protected]>
sound/soc/intel/atom/sst/sst_drv_interface.c +1 -1
index 718838b..7b50a9d 100644
@@ -381,7 +381,7 @@ static int sst_cdev_tstamp(struct device *dev, unsigned int str_id,
 	tstamp->copied_total = fw_tstamp.ring_buffer_counter;
 	tstamp->pcm_frames = fw_tstamp.frames_decoded;
 	tstamp->pcm_io_frames = div_u64(fw_tstamp.hardware_counter,
-			(u64)((stream->num_ch) * SST_GET_BYTES_PER_SAMPLE(24)));
+			(u64)stream->num_ch * SST_GET_BYTES_PER_SAMPLE(24));
 	tstamp->sampling_rate = fw_tstamp.sampling_frequency;
 
 	dev_dbg(dev, "PCM  = %u\n", tstamp->pcm_io_frames);
maintainer Applied
#1 lore raw
Quoted 4 lines · Dan Carpenter

My static checker complains about these because it looks like the multiply can overflow and then we cast to a larger data type. I don't think this is a problem, but it's also harmless to do the cast earlier so let's silence the static checker warning.

Applied, thanks.