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authorTakashi Iwai <tiwai@suse.de>2010-04-13 11:39:47 +0200
committerTakashi Iwai <tiwai@suse.de>2010-04-13 12:01:20 +0200
commit73029e0ff18dfac8a1aab1dc188e1e150bbe3adc (patch)
tree680d00a2e5bc124b5b1b642508a47a90e3c47b3f /sound/drivers
parentd97e1b78239c7e7e441088e0b644bd3b076002e6 (diff)
downloadlwn-73029e0ff18dfac8a1aab1dc188e1e150bbe3adc.tar.gz
lwn-73029e0ff18dfac8a1aab1dc188e1e150bbe3adc.zip
ALSA: info - Implement common llseek for binary mode
The llseek implementation is identical for existing driver implementations, so let's merge to the common layer. The same code for the text proc file can be used even for the binary proc file. The driver can provide its own llseek method if needed. Then the common code will be skipped. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/drivers')
-rw-r--r--sound/drivers/opl4/opl4_proc.c24
1 files changed, 0 insertions, 24 deletions
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)