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[ Upstream commit04f8f05325] Ensure the value passed to scarlett2_mixer_ctl_put() is between 0 and SCARLETT2_MIXER_MAX_VALUE so we don't attempt to access outside scarlett2_mixer_values[]. Signed-off-by: Geoffrey D. Bennett <g@b4.vu> Fixes:9e4d5c1be2("ALSA: usb-audio: Scarlett Gen 2 mixer interface") Link: https://lore.kernel.org/r/3b19fb3da641b587749b85fe1daa1b4e696c0c1b.1703001053.git.g@b4.vu Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>