tree: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.2 head: 6d5e2bf9d203e4d9e08ca2e9420c6ff22ad190af commit: cce1396936ef2b347d622b4d49718818eb32029d [101/107] ASoC: sprd: Add Spreadtrum audio compress offload support

smatch warnings: sound/soc/sprd/sprd-pcm-compress.c:110 sprd_platform_compr_drain_notify() warn: variable dereferenced before check 'cstream' (see line 105)

# https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?id... git remote add asoc https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git git remote update asoc git checkout cce1396936ef2b347d622b4d49718818eb32029d vim +/cstream +110 sound/soc/sprd/sprd-pcm-compress.c

cce13969 Baolin Wang 2019-03-27 98 cce13969 Baolin Wang 2019-03-27 99 static int sprd_platform_compr_trigger(struct snd_compr_stream *cstream, cce13969 Baolin Wang 2019-03-27 100 int cmd); cce13969 Baolin Wang 2019-03-27 101 cce13969 Baolin Wang 2019-03-27 102 static void sprd_platform_compr_drain_notify(void *arg) cce13969 Baolin Wang 2019-03-27 103 { cce13969 Baolin Wang 2019-03-27 104 struct snd_compr_stream *cstream = arg; cce13969 Baolin Wang 2019-03-27 @105 struct snd_compr_runtime *runtime = cstream->runtime; ^^^^^^^^^^^^^^^^

cce13969 Baolin Wang 2019-03-27 106 struct sprd_compr_stream *stream = runtime->private_data; cce13969 Baolin Wang 2019-03-27 107 cce13969 Baolin Wang 2019-03-27 108 memset(stream->info_area, 0, sizeof(struct sprd_compr_playinfo)); cce13969 Baolin Wang 2019-03-27 109 cce13969 Baolin Wang 2019-03-27 @110 if (cstream) ^^^^^^^

cce13969 Baolin Wang 2019-03-27 111 snd_compr_drain_notify(cstream); cce13969 Baolin Wang 2019-03-27 112 } cce13969 Baolin Wang 2019-03-27 113

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