diff options
Diffstat (limited to 'sound/core')
| -rw-r--r-- | sound/core/control.c | 12 | ||||
| -rw-r--r-- | sound/core/control_compat.c | 14 | ||||
| -rw-r--r-- | sound/core/pcm_native.c | 4 |
3 files changed, 17 insertions, 13 deletions
diff --git a/sound/core/control.c b/sound/core/control.c index 82aa1af1d1d8..8386b53acdcd 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -730,12 +730,20 @@ EXPORT_SYMBOL_GPL(snd_ctl_activate_id); * Finds the control with the old id from the card, and replaces the * id with the new one. * + * The function tries to keep the already assigned numid while replacing + * the rest. + * + * Note that this function should be used only in the card initialization + * phase. Calling after the card instantiation may cause issues with + * user-space expecting persistent numids. + * * Return: Zero if successful, or a negative error code on failure. */ int snd_ctl_rename_id(struct snd_card *card, struct snd_ctl_elem_id *src_id, struct snd_ctl_elem_id *dst_id) { struct snd_kcontrol *kctl; + int saved_numid; down_write(&card->controls_rwsem); kctl = snd_ctl_find_id(card, src_id); @@ -743,10 +751,10 @@ int snd_ctl_rename_id(struct snd_card *card, struct snd_ctl_elem_id *src_id, up_write(&card->controls_rwsem); return -ENOENT; } + saved_numid = kctl->id.numid; remove_hash_entries(card, kctl); kctl->id = *dst_id; - kctl->id.numid = card->last_numid + 1; - card->last_numid += kctl->count; + kctl->id.numid = saved_numid; add_hash_entries(card, kctl); up_write(&card->controls_rwsem); return 0; diff --git a/sound/core/control_compat.c b/sound/core/control_compat.c index d8a86d1a99d6..9cae5d74335c 100644 --- a/sound/core/control_compat.c +++ b/sound/core/control_compat.c @@ -197,7 +197,7 @@ static int get_ctl_type(struct snd_card *card, struct snd_ctl_elem_id *id, return err; } -static int get_elem_size(int type, int count) +static int get_elem_size(snd_ctl_elem_type_t type, int count) { switch (type) { case SNDRV_CTL_ELEM_TYPE_INTEGER64: @@ -234,8 +234,8 @@ static int copy_ctl_value_from_user(struct snd_card *card, if (type < 0) return type; - if (type == SNDRV_CTL_ELEM_TYPE_BOOLEAN || - type == SNDRV_CTL_ELEM_TYPE_INTEGER) { + if (type == (__force int)SNDRV_CTL_ELEM_TYPE_BOOLEAN || + type == (__force int)SNDRV_CTL_ELEM_TYPE_INTEGER) { for (i = 0; i < count; i++) { s32 __user *intp = valuep; int val; @@ -244,7 +244,7 @@ static int copy_ctl_value_from_user(struct snd_card *card, data->value.integer.value[i] = val; } } else { - size = get_elem_size(type, count); + size = get_elem_size((__force snd_ctl_elem_type_t)type, count); if (size < 0) { dev_err(card->dev, "snd_ioctl32_ctl_elem_value: unknown type %d\n", type); return -EINVAL; @@ -267,8 +267,8 @@ static int copy_ctl_value_to_user(void __user *userdata, struct snd_ctl_elem_value32 __user *data32 = userdata; int i, size; - if (type == SNDRV_CTL_ELEM_TYPE_BOOLEAN || - type == SNDRV_CTL_ELEM_TYPE_INTEGER) { + if (type == (__force int)SNDRV_CTL_ELEM_TYPE_BOOLEAN || + type == (__force int)SNDRV_CTL_ELEM_TYPE_INTEGER) { for (i = 0; i < count; i++) { s32 __user *intp = valuep; int val; @@ -277,7 +277,7 @@ static int copy_ctl_value_to_user(void __user *userdata, return -EFAULT; } } else { - size = get_elem_size(type, count); + size = get_elem_size((__force snd_ctl_elem_type_t)type, count); if (copy_to_user(valuep, data->value.bytes.data, size)) return -EFAULT; } diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 39a65d1415ab..95fc56e403b1 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1605,10 +1605,6 @@ static int snd_pcm_do_pause(struct snd_pcm_substream *substream, { if (substream->runtime->trigger_master != substream) return 0; - /* some drivers might use hw_ptr to recover from the pause - - update the hw_ptr now */ - if (pause_pushed(state)) - snd_pcm_update_hw_ptr(substream); /* The jiffies check in snd_pcm_update_hw_ptr*() is done by * a delta between the current jiffies, this gives a large enough * delta, effectively to skip the check once. |