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authorTakashi Iwai <tiwai@suse.de>2018-01-15 16:45:11 +0100
committerTakashi Iwai <tiwai@suse.de>2018-01-15 16:45:15 +0100
commit4ea5553a51e55664f86bed29e62e67ecb45bedd8 (patch)
treeea63c963555b083858c581385ff5bfb24413caca /sound/core
parent33193dca671c8b75eb030234cefdcd2ceebd7516 (diff)
parentb3defb791b26ea0683a93a4f49c77ec45ec96f10 (diff)
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Merge branch 'for-linus' into for-next
Back-merge to the development branch for further fixes of sequencer stuff. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/pcm_lib.c1
-rw-r--r--sound/core/seq/seq_clientmgr.c3
-rw-r--r--sound/core/seq/seq_clientmgr.h1
3 files changed, 4 insertions, 1 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 32e33e75f3cb..a83152e7d387 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -560,7 +560,6 @@ static inline unsigned int muldiv32(unsigned int a, unsigned int b,
{
u_int64_t n = (u_int64_t) a * b;
if (c == 0) {
- snd_BUG_ON(!n);
*r = 0;
return UINT_MAX;
}
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index 6e22eea72654..d01913404581 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -221,6 +221,7 @@ static struct snd_seq_client *seq_create_client1(int client_index, int poolsize)
rwlock_init(&client->ports_lock);
mutex_init(&client->ports_mutex);
INIT_LIST_HEAD(&client->ports_list_head);
+ mutex_init(&client->ioctl_mutex);
/* find free slot in the client table */
spin_lock_irqsave(&clients_lock, flags);
@@ -2130,7 +2131,9 @@ static long snd_seq_ioctl(struct file *file, unsigned int cmd,
return -EFAULT;
}
+ mutex_lock(&client->ioctl_mutex);
err = handler->func(client, &buf);
+ mutex_unlock(&client->ioctl_mutex);
if (err >= 0) {
/* Some commands includes a bug in 'dir' field. */
if (handler->cmd == SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT ||
diff --git a/sound/core/seq/seq_clientmgr.h b/sound/core/seq/seq_clientmgr.h
index c6614254ef8a..0611e1e0ed5b 100644
--- a/sound/core/seq/seq_clientmgr.h
+++ b/sound/core/seq/seq_clientmgr.h
@@ -61,6 +61,7 @@ struct snd_seq_client {
struct list_head ports_list_head;
rwlock_t ports_lock;
struct mutex ports_mutex;
+ struct mutex ioctl_mutex;
int convert32; /* convert 32->64bit */
/* output pool */