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Diffstat (limited to 'sound')
-rw-r--r--sound/core/info.c56
-rw-r--r--sound/drivers/opl4/opl4_proc.c24
-rw-r--r--sound/isa/gus/gus_mem_proc.c26
-rw-r--r--sound/pci/mixart/mixart.c51
4 files changed, 30 insertions, 127 deletions
diff --git a/sound/core/info.c b/sound/core/info.c
index f90a6fd43fb4..b70564ed8b37 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -164,39 +164,43 @@ static loff_t snd_info_entry_llseek(struct file *file, loff_t offset, int orig)
{
struct snd_info_private_data *data;
struct snd_info_entry *entry;
- loff_t ret;
+ loff_t ret = -EINVAL, size;
data = file->private_data;
entry = data->entry;
mutex_lock(&entry->access);
- switch (entry->content) {
- case SNDRV_INFO_CONTENT_TEXT:
- switch (orig) {
- case SEEK_SET:
- file->f_pos = offset;
- ret = file->f_pos;
- goto out;
- case SEEK_CUR:
- file->f_pos += offset;
- ret = file->f_pos;
- goto out;
- case SEEK_END:
- default:
- ret = -EINVAL;
- goto out;
- }
+ if (entry->content == SNDRV_INFO_CONTENT_DATA &&
+ entry->c.ops->llseek) {
+ offset = entry->c.ops->llseek(entry,
+ data->file_private_data,
+ file, offset, orig);
+ goto out;
+ }
+ if (entry->content == SNDRV_INFO_CONTENT_DATA)
+ size = entry->size;
+ else
+ size = 0;
+ switch (orig) {
+ case SEEK_SET:
break;
- case SNDRV_INFO_CONTENT_DATA:
- if (entry->c.ops->llseek) {
- ret = entry->c.ops->llseek(entry,
- data->file_private_data,
- file, offset, orig);
+ case SEEK_CUR:
+ offset += file->f_pos;
+ break;
+ case SEEK_END:
+ if (!size)
goto out;
- }
+ offset += size;
break;
- }
- ret = -ENXIO;
-out:
+ default:
+ goto out;
+ }
+ if (offset < 0)
+ goto out;
+ if (size && offset > size)
+ offset = size;
+ file->f_pos = offset;
+ ret = offset;
+ out:
mutex_unlock(&entry->access);
return ret;
}
diff --git a/sound/drivers/opl4/opl4_proc.c b/sound/drivers/opl4/opl4_proc.c
index 210b89de06d7..c5c13c4c260e 100644
--- a/sound/drivers/opl4/opl4_proc.c
+++ b/sound/drivers/opl4/opl4_proc.c
@@ -90,35 +90,11 @@ static ssize_t snd_opl4_mem_proc_write(struct snd_info_entry *entry,
return count;
}
-static loff_t snd_opl4_mem_proc_llseek(struct snd_info_entry *entry,
- void *file_private_data,
- struct file *file,
- loff_t offset, int orig)
-{
- switch (orig) {
- case SEEK_SET:
- file->f_pos = offset;
- break;
- case SEEK_CUR:
- file->f_pos += offset;
- break;
- case SEEK_END: /* offset is negative */
- file->f_pos = entry->size + offset;
- break;
- default:
- return -EINVAL;
- }
- if (file->f_pos > entry->size)
- file->f_pos = entry->size;
- return file->f_pos;
-}
-
static struct snd_info_entry_ops snd_opl4_mem_proc_ops = {
.open = snd_opl4_mem_proc_open,
.release = snd_opl4_mem_proc_release,
.read = snd_opl4_mem_proc_read,
.write = snd_opl4_mem_proc_write,
- .llseek = snd_opl4_mem_proc_llseek,
};
int snd_opl4_create_proc(struct snd_opl4 *opl4)
diff --git a/sound/isa/gus/gus_mem_proc.c b/sound/isa/gus/gus_mem_proc.c
index faa2bec8f6b6..2ccb3fadd7be 100644
--- a/sound/isa/gus/gus_mem_proc.c
+++ b/sound/isa/gus/gus_mem_proc.c
@@ -46,31 +46,6 @@ static ssize_t snd_gf1_mem_proc_dump(struct snd_info_entry *entry,
return count;
}
-static loff_t snd_gf1_mem_proc_llseek(struct snd_info_entry *entry,
- void *private_file_data,
- struct file *file,
- loff_t offset, int orig)
-{
- struct gus_proc_private *priv = entry->private_data;
-
- switch (orig) {
- case SEEK_SET:
- file->f_pos = offset;
- break;
- case SEEK_CUR:
- file->f_pos += offset;
- break;
- case SEEK_END: /* offset is negative */
- file->f_pos = priv->size + offset;
- break;
- default:
- return -EINVAL;
- }
- if (file->f_pos > priv->size)
- file->f_pos = priv->size;
- return file->f_pos;
-}
-
static void snd_gf1_mem_proc_free(struct snd_info_entry *entry)
{
struct gus_proc_private *priv = entry->private_data;
@@ -79,7 +54,6 @@ static void snd_gf1_mem_proc_free(struct snd_info_entry *entry)
static struct snd_info_entry_ops snd_gf1_mem_proc_ops = {
.read = snd_gf1_mem_proc_dump,
- .llseek = snd_gf1_mem_proc_llseek,
};
int snd_gf1_mem_proc_init(struct snd_gus_card * gus)
diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
index be95e005c81d..6c3fd4d1c49d 100644
--- a/sound/pci/mixart/mixart.c
+++ b/sound/pci/mixart/mixart.c
@@ -1102,55 +1102,6 @@ static int snd_mixart_free(struct mixart_mgr *mgr)
/*
* proc interface
*/
-static loff_t snd_mixart_BA0_llseek(struct snd_info_entry *entry,
- void *private_file_data,
- struct file *file,
- loff_t offset, int orig)
-{
- offset = offset & ~3; /* 4 bytes aligned */
-
- switch(orig) {
- case SEEK_SET:
- file->f_pos = offset;
- break;
- case SEEK_CUR:
- file->f_pos += offset;
- break;
- case SEEK_END: /* offset is negative */
- file->f_pos = MIXART_BA0_SIZE + offset;
- break;
- default:
- return -EINVAL;
- }
- if(file->f_pos > MIXART_BA0_SIZE)
- file->f_pos = MIXART_BA0_SIZE;
- return file->f_pos;
-}
-
-static loff_t snd_mixart_BA1_llseek(struct snd_info_entry *entry,
- void *private_file_data,
- struct file *file,
- loff_t offset, int orig)
-{
- offset = offset & ~3; /* 4 bytes aligned */
-
- switch(orig) {
- case SEEK_SET:
- file->f_pos = offset;
- break;
- case SEEK_CUR:
- file->f_pos += offset;
- break;
- case SEEK_END: /* offset is negative */
- file->f_pos = MIXART_BA1_SIZE + offset;
- break;
- default:
- return -EINVAL;
- }
- if(file->f_pos > MIXART_BA1_SIZE)
- file->f_pos = MIXART_BA1_SIZE;
- return file->f_pos;
-}
/*
mixart_BA0 proc interface for BAR 0 - read callback
@@ -1186,12 +1137,10 @@ static ssize_t snd_mixart_BA1_read(struct snd_info_entry *entry,
static struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
.read = snd_mixart_BA0_read,
- .llseek = snd_mixart_BA0_llseek
};
static struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
.read = snd_mixart_BA1_read,
- .llseek = snd_mixart_BA1_llseek
};
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-23 17:01:22 +0000