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ALSA: ump: Fix parsing of 0xFx command

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The MIDI 1.0 parser retrieved the 0xFx command with a wrong bit shift,
resulting in the bogus type.  Fix the bit shift size.

Fixes: 0b5288f5fe ("ALSA: ump: Add legacy raw MIDI support")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/0fbc0b27-54b8-4cda-800e-37e7a03fed39@kili.mountain
Suggested-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/20230525083124.15277-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2023-05-25 10:31:24 +02:00
parent ab2335daa6
commit 77700b81bd
1 changed files with 1 additions and 1 deletions
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2
sound/core/ump_convert.c
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@ -454,7 +454,7 @@ static int do_convert_to_ump(struct snd_ump_endpoint *ump,
} }
if (c & 0x80) { if (c & 0x80) {
bytes = cmd_bytes[(c >> 8) & 7]; bytes = cmd_bytes[(c >> 4) & 7];
cvt->buf[0] = c; cvt->buf[0] = c;
cvt->len = 1; cvt->len = 1;
cvt->cmd_bytes = bytes; cvt->cmd_bytes = bytes;