#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/time.h>
#include <linux/device.h>
#include <linux/moduleparam.h>
#include <linux/kmod.h>
#include <linux/mutex.h>
-#define SNDRV_OS_MINORS 256
-
static int major = CONFIG_SND_MAJOR;
int snd_major;
EXPORT_SYMBOL(snd_major);
static struct snd_minor *snd_minors[SNDRV_OS_MINORS];
static DEFINE_MUTEX(sound_mutex);
-#ifdef CONFIG_KMOD
+#ifdef CONFIG_MODULES
/**
* snd_request_card - try to load the card module
* @card: the card number
*
* Tries to load the module "snd-card-X" for the given card number
- * via KMOD. Returns immediately if already loaded.
+ * via request_module. Returns immediately if already loaded.
*/
void snd_request_card(int card)
{
request_module(str);
}
-#endif /* request_module support */
+#endif /* modular kernel */
/**
* snd_lookup_minor_data - get user data of a registered device
EXPORT_SYMBOL(snd_lookup_minor_data);
-static int snd_open(struct inode *inode, struct file *file)
+static int __snd_open(struct inode *inode, struct file *file)
{
unsigned int minor = iminor(inode);
struct snd_minor *mptr = NULL;
return -ENODEV;
mptr = snd_minors[minor];
if (mptr == NULL) {
-#ifdef CONFIG_KMOD
+#ifdef CONFIG_MODULES
int dev = SNDRV_MINOR_DEVICE(minor);
if (dev == SNDRV_MINOR_CONTROL) {
/* /dev/aloadC? */
return err;
}
+
+/* BKL pushdown: nasty #ifdef avoidance wrapper */
+static int snd_open(struct inode *inode, struct file *file)
+{
+ int ret;
+
+ lock_kernel();
+ ret = __snd_open(inode, file);
+ unlock_kernel();
+ return ret;
+}
+
static const struct file_operations snd_fops =
{
.owner = THIS_MODULE,
minor = type;
break;
case SNDRV_DEVICE_TYPE_CONTROL:
- snd_assert(card != NULL, return -EINVAL);
+ if (snd_BUG_ON(!card))
+ return -EINVAL;
minor = SNDRV_MINOR(card->number, type);
break;
case SNDRV_DEVICE_TYPE_HWDEP:
case SNDRV_DEVICE_TYPE_RAWMIDI:
case SNDRV_DEVICE_TYPE_PCM_PLAYBACK:
case SNDRV_DEVICE_TYPE_PCM_CAPTURE:
- snd_assert(card != NULL, return -EINVAL);
+ if (snd_BUG_ON(!card))
+ return -EINVAL;
minor = SNDRV_MINOR(card->number, type + dev);
break;
default:
return -EINVAL;
}
- snd_assert(minor >= 0 && minor < SNDRV_OS_MINORS, return -EINVAL);
+ if (snd_BUG_ON(minor < 0 || minor >= SNDRV_OS_MINORS))
+ return -EINVAL;
return minor;
}
#endif
int minor;
struct snd_minor *preg;
- snd_assert(name, return -EINVAL);
+ if (snd_BUG_ON(!name))
+ return -EINVAL;
preg = kmalloc(sizeof *preg, GFP_KERNEL);
if (preg == NULL)
return -ENOMEM;