From 375052892172c741b93e8e9303ec186cca7169ab Mon Sep 17 00:00:00 2001 From: Oswald Buddenhagen Date: Sat, 22 Apr 2023 18:10:20 +0200 Subject: [PATCH] ALSA: emu10k1: fix SNDRV_EMU10K1_IOCTL_SINGLE_STEP - Use correct address limit for Audigy - Use the right constant to actually make a step on Audigy - Don't store *_DBG_STEP and the address in emu->fx8010.dbg, as otherwise unrelated operations would make steps, too This is untested. as10k1 was never ported to Audigy anyway. Signed-off-by: Oswald Buddenhagen Link: https://lore.kernel.org/r/20230422161021.1144004-1-oswald.buddenhagen@gmx.de Signed-off-by: Takashi Iwai --- sound/pci/emu10k1/emufx.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c index 510b776..355e3bd 100644 --- a/sound/pci/emu10k1/emufx.c +++ b/sound/pci/emu10k1/emufx.c @@ -2650,17 +2650,19 @@ static int snd_emu10k1_fx8010_ioctl(struct snd_hwdep * hw, struct file *file, un return -EPERM; if (get_user(addr, (unsigned int __user *)argp)) return -EFAULT; - if (addr > 0x1ff) - return -EINVAL; - if (emu->audigy) - snd_emu10k1_ptr_write(emu, A_DBG, 0, emu->fx8010.dbg |= A_DBG_SINGLE_STEP | addr); - else - snd_emu10k1_ptr_write(emu, DBG, 0, emu->fx8010.dbg |= EMU10K1_DBG_SINGLE_STEP | addr); - udelay(10); - if (emu->audigy) - snd_emu10k1_ptr_write(emu, A_DBG, 0, emu->fx8010.dbg |= A_DBG_SINGLE_STEP | A_DBG_STEP_ADDR | addr); - else - snd_emu10k1_ptr_write(emu, DBG, 0, emu->fx8010.dbg |= EMU10K1_DBG_SINGLE_STEP | EMU10K1_DBG_STEP | addr); + if (emu->audigy) { + if (addr > A_DBG_STEP_ADDR) + return -EINVAL; + snd_emu10k1_ptr_write(emu, A_DBG, 0, emu->fx8010.dbg |= A_DBG_SINGLE_STEP); + udelay(10); + snd_emu10k1_ptr_write(emu, A_DBG, 0, emu->fx8010.dbg | A_DBG_STEP | addr); + } else { + if (addr > EMU10K1_DBG_SINGLE_STEP_ADDR) + return -EINVAL; + snd_emu10k1_ptr_write(emu, DBG, 0, emu->fx8010.dbg |= EMU10K1_DBG_SINGLE_STEP); + udelay(10); + snd_emu10k1_ptr_write(emu, DBG, 0, emu->fx8010.dbg | EMU10K1_DBG_STEP | addr); + } return 0; case SNDRV_EMU10K1_IOCTL_DBG_READ: if (emu->audigy) -- 2.7.4