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authorLars-Peter Clausen <lars@metafoo.de>2016-11-22 13:29:14 +0300
committerMark Brown <broonie@kernel.org>2016-11-22 19:45:46 +0300
commit852801417a89375c0df4285e60d90c7821a1d730 (patch)
treee4f266309fd9b5b06634bfde9cee2da44346d8a8 /sound/soc/soc-pcm.c
parent1001354ca34179f3db924eb66672442a173147dc (diff)
downloadlinux-852801417a89375c0df4285e60d90c7821a1d730.tar.xz
ASoC: Make return type of dpcm_state_string() const char *
dpcm_state_string() returns a pointer to a string literal. Modifying a string literal causes undefined behaviour. So make the return type of the function const char * to make it explicit that the returned value should not be modified. This patch is purely cosmetic, none of the users of dpcm_state_string() attempt to modify the returned content. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-pcm.c')
-rw-r--r--sound/soc/soc-pcm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d56a16a0f6fa..e7a1eaa2772f 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2882,7 +2882,7 @@ int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
EXPORT_SYMBOL_GPL(snd_soc_platform_trigger);
#ifdef CONFIG_DEBUG_FS
-static char *dpcm_state_string(enum snd_soc_dpcm_state state)
+static const char *dpcm_state_string(enum snd_soc_dpcm_state state)
{
switch (state) {
case SND_SOC_DPCM_STATE_NEW: