ALSA: drivers: opl3: Fix incorrect use of vp->state

Static analysis with scan-build has found an assignment to vp2 that is
never used. It seems that the check on vp->state > 0 should be actually
on vp2->state instead. Fix this.

This dates back to 2002, I found the offending commit from the git
history git://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git,
commit 91e39521bbf6 ("[PATCH] ALSA patch for 2.5.4")

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211212172025.470367-1-colin.i.king@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/drivers/opl3/opl3_midi.c b/sound/drivers/opl3/opl3_midi.c
index e1b69c6..e2b7be6 100644 (file)
--- a/sound/drivers/opl3/opl3_midi.c
+++ b/sound/drivers/opl3/opl3_midi.c
@@ -397,7 +397,7 @@ void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
        }
        if (instr_4op) {
                vp2 = &opl3->voices[voice + 3];
-               if (vp->state > 0) {
+               if (vp2->state > 0) {
                        opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK +
                                               voice_offset + 3);
                        reg_val = vp->keyon_reg & ~OPL3_KEYON_BIT;