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ALSA: dice: fix fallback from protocol extension into limited functionality

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commit 3e2dc6bdb56893bc28257e482e1dbe5d39f313df upstream.

At failure of attempt to detect protocol extension, ALSA dice driver
should be fallback to limited functionality. However it's not.

This commit fixes it.

Cc: <[email protected]> # v4.18+
Fixes: 58579c056c ("ALSA: dice: use extended protocol to detect available stream formats")
Signed-off-by: Takashi Sakamoto <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Takashi Sakamoto 2020-01-13 17:46:28 +09:00 • committed by Greg Kroah-Hartman
commit 4aeac091e2
1 changed files with 4 additions and 1 deletions
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5
sound/firewire/dice/dice-extension.c
View file

@ -159,8 +159,11 @@ int snd_dice_detect_extension_formats(struct snd_dice *dice)
int j;
for (j = i + 1; j < 9; ++j) {
if (pointers[i * 2] == pointers[j * 2])
if (pointers[i * 2] == pointers[j * 2]) {
// Fallback to limited functionality.
err = -ENXIO;
goto end;
}
}
}