[ALSA] sound/pci/rme9652/hdspm.c: fix off-by-one errors

Modules: RME9652 driver

This patch fixes off-by-one errors found by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
1 file changed