From d5129f33a0d155d69cb0652cfc87bbc4d132ca17 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 15 Oct 2014 14:09:42 +0200 Subject: [PATCH] Subject: ALSA: seq: Remove autoload locks in driver registration Since we're calling request_module() asynchronously now, we can get rid of the autoload lock in snd_seq_device_register_driver(), as well as in the snd-seq driver registration itself. This enables the automatic loading of dependent sequencer modules, such as snd-seq-virmidi from snd-emu10k1-synth. Signed-off-by: Takashi Iwai --- sound/core/seq/seq.c | 2 -- sound/core/seq/seq_device.c | 7 +------ 2 files changed, 1 insertion(+), 8 deletions(-) diff --git a/sound/core/seq/seq.c b/sound/core/seq/seq.c index bebdd2e920ca..7e0aabb808a6 100644 --- a/sound/core/seq/seq.c +++ b/sound/core/seq/seq.c @@ -86,7 +86,6 @@ static int __init alsa_seq_init(void) { int err; - snd_seq_autoload_lock(); if ((err = client_init_data()) < 0) goto error; @@ -112,7 +111,6 @@ static int __init alsa_seq_init(void) snd_seq_autoload_init(); error: - snd_seq_autoload_unlock(); return err; } diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c index a8e2c6016800..0631bdadd12b 100644 --- a/sound/core/seq/seq_device.c +++ b/sound/core/seq/seq_device.c @@ -360,16 +360,12 @@ int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry, entry->init_device == NULL || entry->free_device == NULL) return -EINVAL; - snd_seq_autoload_lock(); ops = find_driver(id, 1); - if (ops == NULL) { - snd_seq_autoload_unlock(); + if (ops == NULL) return -ENOMEM; - } if (ops->driver & DRIVER_LOADED) { pr_warn("ALSA: seq: driver_register: driver '%s' already exists\n", id); unlock_driver(ops); - snd_seq_autoload_unlock(); return -EBUSY; } @@ -386,7 +382,6 @@ int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry, mutex_unlock(&ops->reg_mutex); unlock_driver(ops); - snd_seq_autoload_unlock(); return 0; }