From: Takashi Iwai <tiwai@xxxxxxx> commit 2acf25f13ebe8beb40e97a1bbe76f36277c64f1e upstream. The loop termination for iterating over all formats should contain SNDRV_PCM_FORMAT_LAST, not less than it. Fixes: 9b151fec139d ("ALSA: dummy - Add debug proc file") Cc: <stable@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20200201080530.22390-3-tiwai@xxxxxxx Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- sound/drivers/dummy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/sound/drivers/dummy.c +++ b/sound/drivers/dummy.c @@ -933,7 +933,7 @@ static void print_formats(struct snd_dum { int i; - for (i = 0; i < SNDRV_PCM_FORMAT_LAST; i++) { + for (i = 0; i <= SNDRV_PCM_FORMAT_LAST; i++) { if (dummy->pcm_hw.formats & (1ULL << i)) snd_iprintf(buffer, " %s", snd_pcm_format_name(i)); }