[PATCH 4.2 040/134] ALSA: usb-audio: correct the value cache check.

4.2-stable review patch. If anyone has any objections, please let me know. -- From: Yao-Wen Mao commit 6aa6925cad06159dc6e25857991bbc4960821242 upstream. The check of cval->cached should be zero-based (including master channel). Signed-off-by: Yao-Wen Mao Signed-off-by:

[PATCH 4.2 040/134] ALSA: usb-audio: correct the value cache check.

4.2-stable review patch. If anyone has any objections, please let me know. -- From: Yao-Wen Mao commit 6aa6925cad06159dc6e25857991bbc4960821242 upstream. The check of cval->cached should be zero-based (including master channel). Signed-off-by: Yao-Wen Mao