#include <linux/slab.h>
#include <linux/time.h>
#include <linux/ctype.h>
-#include <linux/pci.h>
#include <linux/pm.h>
#include <sound/core.h>
static DEFINE_SPINLOCK(shutdown_lock);
static LIST_HEAD(shutdown_files);
-static struct file_operations snd_shutdown_f_ops;
+static const struct file_operations snd_shutdown_f_ops;
static unsigned int snd_cards_lock; /* locked for registering/using */
struct snd_card *snd_cards[SNDRV_CARDS];
if (idx < 0) {
int idx2;
for (idx2 = 0; idx2 < SNDRV_CARDS; idx2++)
+ /* idx == -1 == 0xffff means: take any free slot */
if (~snd_cards_lock & idx & 1<<idx2) {
idx = idx2;
if (idx >= snd_ecards_limit)
snd_ecards_limit = idx + 1;
break;
}
- } else if (idx < snd_ecards_limit) {
- if (snd_cards_lock & (1 << idx))
- err = -ENODEV; /* invalid */
- } else if (idx < SNDRV_CARDS)
- snd_ecards_limit = idx + 1; /* increase the limit */
- else
- err = -ENODEV;
+ } else {
+ if (idx < snd_ecards_limit) {
+ if (snd_cards_lock & (1 << idx))
+ err = -EBUSY; /* invalid */
+ } else {
+ if (idx < SNDRV_CARDS)
+ snd_ecards_limit = idx + 1; /* increase the limit */
+ else
+ err = -ENODEV;
+ }
+ }
if (idx < 0 || err < 0) {
mutex_unlock(&snd_card_mutex);
- snd_printk(KERN_ERR "cannot find the slot for index %d (range 0-%i)\n", idx, snd_ecards_limit - 1);
+ snd_printk(KERN_ERR "cannot find the slot for index %d (range 0-%i), error: %d\n",
+ idx, snd_ecards_limit - 1, err);
goto __error;
}
snd_cards_lock |= 1 << idx; /* lock it */
return -ENODEV;
}
-static struct file_operations snd_shutdown_f_ops =
+static const struct file_operations snd_shutdown_f_ops =
{
.owner = THIS_MODULE,
.llseek = snd_disconnect_llseek,
snd_printk(KERN_WARNING "unable to free card info\n");
/* Not fatal error */
}
- if (card->dev)
- device_unregister(card->dev);
+#ifndef CONFIG_SYSFS_DEPRECATED
+ if (card->card_dev)
+ device_unregister(card->card_dev);
+#endif
kfree(card);
return 0;
}
int err;
snd_assert(card != NULL, return -EINVAL);
- if (!card->dev) {
- card->dev = device_create(sound_class, card->parent, 0,
- "card%i", card->number);
- if (IS_ERR(card->dev))
- card->dev = NULL;
+#ifndef CONFIG_SYSFS_DEPRECATED
+ if (!card->card_dev) {
+ card->card_dev = device_create(sound_class, card->dev, 0,
+ "card%i", card->number);
+ if (IS_ERR(card->card_dev))
+ card->card_dev = NULL;
}
+#endif
if ((err = snd_device_register_all(card)) < 0)
return err;
mutex_lock(&snd_card_mutex);