diff options
Diffstat (limited to 'sound/synth/emux/emux_hwdep.c')
| -rw-r--r-- | sound/synth/emux/emux_hwdep.c | 39 |
1 files changed, 18 insertions, 21 deletions
diff --git a/sound/synth/emux/emux_hwdep.c b/sound/synth/emux/emux_hwdep.c index e557946718a9..14b990cf3b22 100644 --- a/sound/synth/emux/emux_hwdep.c +++ b/sound/synth/emux/emux_hwdep.c @@ -1,30 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Interface for hwdep device * * Copyright (C) 2004 Takashi Iwai <tiwai@suse.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #include <sound/core.h> #include <sound/hwdep.h> #include <linux/uaccess.h> +#include <linux/nospec.h> #include "emux_voice.h" - #define TMP_CLIENT_ID 0x1001 /* @@ -39,9 +25,15 @@ snd_emux_hwdep_load_patch(struct snd_emux *emu, void __user *arg) if (copy_from_user(&patch, arg, sizeof(patch))) return -EFAULT; + if (patch.key == GUS_PATCH) + return snd_soundfont_load_guspatch(emu->card, emu->sflist, arg, + patch.len + sizeof(patch)); + if (patch.type >= SNDRV_SFNT_LOAD_INFO && patch.type <= SNDRV_SFNT_PROBE_DATA) { - err = snd_soundfont_load(emu->sflist, arg, patch.len + sizeof(patch), TMP_CLIENT_ID); + err = snd_soundfont_load(emu->card, emu->sflist, arg, + patch.len + sizeof(patch), + TMP_CLIENT_ID); if (err < 0) return err; } else { @@ -66,13 +58,16 @@ snd_emux_hwdep_misc_mode(struct snd_emux *emu, void __user *arg) return -EFAULT; if (info.mode < 0 || info.mode >= EMUX_MD_END) return -EINVAL; + info.mode = array_index_nospec(info.mode, EMUX_MD_END); if (info.port < 0) { for (i = 0; i < emu->num_ports; i++) emu->portptrs[i]->ctrls[info.mode] = info.value; } else { - if (info.port < emu->num_ports) + if (info.port < emu->num_ports) { + info.port = array_index_nospec(info.port, emu->num_ports); emu->portptrs[info.port]->ctrls[info.mode] = info.value; + } } return 0; } @@ -122,10 +117,11 @@ snd_emux_init_hwdep(struct snd_emux *emu) struct snd_hwdep *hw; int err; - if ((err = snd_hwdep_new(emu->card, SNDRV_EMUX_HWDEP_NAME, emu->hwdep_idx, &hw)) < 0) + err = snd_hwdep_new(emu->card, SNDRV_EMUX_HWDEP_NAME, emu->hwdep_idx, &hw); + if (err < 0) return err; emu->hwdep = hw; - strcpy(hw->name, SNDRV_EMUX_HWDEP_NAME); + strscpy(hw->name, SNDRV_EMUX_HWDEP_NAME); hw->iface = SNDRV_HWDEP_IFACE_EMUX_WAVETABLE; hw->ops.ioctl = snd_emux_hwdep_ioctl; /* The ioctl parameter types are compatible between 32- and @@ -133,7 +129,8 @@ snd_emux_init_hwdep(struct snd_emux *emu) hw->ops.ioctl_compat = snd_emux_hwdep_ioctl; hw->exclusive = 1; hw->private_data = emu; - if ((err = snd_card_register(emu->card)) < 0) + err = snd_card_register(emu->card); + if (err < 0) return err; return 0; |