From f87135f56cb266e031f5ec081dfbde7e43f55e80 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sun, 20 Nov 2005 14:06:59 +0100 Subject: [ALSA] dynamic minors (3/6): store device-specific object pointers dynamically Instead of storing the pointers to the device-specific structures in an array, put them into the struct snd_minor, and look them up dynamically. This makes the device type modules independent of the minor number encoding. Signed-off-by: Clemens Ladisch --- sound/core/control.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'sound/core/control.c') diff --git a/sound/core/control.c b/sound/core/control.c index 23561e74712..abd62f94372 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -47,13 +47,12 @@ static LIST_HEAD(snd_control_compat_ioctls); static int snd_ctl_open(struct inode *inode, struct file *file) { - int cardnum = SNDRV_MINOR_CARD(iminor(inode)); unsigned long flags; struct snd_card *card; struct snd_ctl_file *ctl; int err; - card = snd_cards[cardnum]; + card = snd_lookup_minor_data(iminor(inode), SNDRV_DEVICE_TYPE_CONTROL); if (!card) { err = -ENODEV; goto __error1; @@ -1277,8 +1276,8 @@ static int snd_ctl_dev_register(struct snd_device *device) cardnum = card->number; snd_assert(cardnum >= 0 && cardnum < SNDRV_CARDS, return -ENXIO); sprintf(name, "controlC%i", cardnum); - if ((err = snd_register_device(SNDRV_DEVICE_TYPE_CONTROL, - card, -1, &snd_ctl_f_ops, name)) < 0) + if ((err = snd_register_device(SNDRV_DEVICE_TYPE_CONTROL, card, -1, + &snd_ctl_f_ops, card, name)) < 0) return err; return 0; } -- cgit v1.2.3