diff options
Diffstat (limited to 'sound/core/seq/seq_clientmgr.c')
| -rw-r--r-- | sound/core/seq/seq_clientmgr.c | 51 |
1 files changed, 34 insertions, 17 deletions
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c index b6a24fb5e76b..2e9d695d336c 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -416,7 +416,10 @@ static ssize_t snd_seq_read(struct file *file, char __user *buf, size_t count, if (snd_BUG_ON(!client)) return -ENXIO; - if (!client->accept_input || (fifo = client->data.user.fifo) == NULL) + if (!client->accept_input) + return -ENXIO; + fifo = client->data.user.fifo; + if (!fifo) return -ENXIO; if (atomic_read(&fifo->overflow) > 0) { @@ -435,9 +438,9 @@ static ssize_t snd_seq_read(struct file *file, char __user *buf, size_t count, int nonblock; nonblock = (file->f_flags & O_NONBLOCK) || result > 0; - if ((err = snd_seq_fifo_cell_out(fifo, &cell, nonblock)) < 0) { + err = snd_seq_fifo_cell_out(fifo, &cell, nonblock); + if (err < 0) break; - } if (snd_seq_ev_is_variable(&cell->event)) { struct snd_seq_event tmpev; tmpev = cell->event; @@ -970,7 +973,8 @@ static int snd_seq_client_enqueue_event(struct snd_seq_client *client, return err; /* we got a cell. enqueue it. */ - if ((err = snd_seq_enqueue_event(cell, atomic, hop)) < 0) { + err = snd_seq_enqueue_event(cell, atomic, hop); + if (err < 0) { snd_seq_cell_free(cell); return err; } @@ -1312,7 +1316,8 @@ static int snd_seq_ioctl_create_port(struct snd_seq_client *client, void *arg) return -EINVAL; } if (client->type == KERNEL_CLIENT) { - if ((callback = info->kernel) != NULL) { + callback = info->kernel; + if (callback) { if (callback->owner) port->owner = callback->owner; port->private_data = callback->private_data; @@ -1466,13 +1471,17 @@ static int snd_seq_ioctl_subscribe_port(struct snd_seq_client *client, struct snd_seq_client *receiver = NULL, *sender = NULL; struct snd_seq_client_port *sport = NULL, *dport = NULL; - if ((receiver = snd_seq_client_use_ptr(subs->dest.client)) == NULL) + receiver = snd_seq_client_use_ptr(subs->dest.client); + if (!receiver) goto __end; - if ((sender = snd_seq_client_use_ptr(subs->sender.client)) == NULL) + sender = snd_seq_client_use_ptr(subs->sender.client); + if (!sender) goto __end; - if ((sport = snd_seq_port_use_ptr(sender, subs->sender.port)) == NULL) + sport = snd_seq_port_use_ptr(sender, subs->sender.port); + if (!sport) goto __end; - if ((dport = snd_seq_port_use_ptr(receiver, subs->dest.port)) == NULL) + dport = snd_seq_port_use_ptr(receiver, subs->dest.port); + if (!dport) goto __end; result = check_subscription_permission(client, sport, dport, subs); @@ -1508,13 +1517,17 @@ static int snd_seq_ioctl_unsubscribe_port(struct snd_seq_client *client, struct snd_seq_client *receiver = NULL, *sender = NULL; struct snd_seq_client_port *sport = NULL, *dport = NULL; - if ((receiver = snd_seq_client_use_ptr(subs->dest.client)) == NULL) + receiver = snd_seq_client_use_ptr(subs->dest.client); + if (!receiver) goto __end; - if ((sender = snd_seq_client_use_ptr(subs->sender.client)) == NULL) + sender = snd_seq_client_use_ptr(subs->sender.client); + if (!sender) goto __end; - if ((sport = snd_seq_port_use_ptr(sender, subs->sender.port)) == NULL) + sport = snd_seq_port_use_ptr(sender, subs->sender.port); + if (!sport) goto __end; - if ((dport = snd_seq_port_use_ptr(receiver, subs->dest.port)) == NULL) + dport = snd_seq_port_use_ptr(receiver, subs->dest.port); + if (!dport) goto __end; result = check_subscription_permission(client, sport, dport, subs); @@ -1926,9 +1939,11 @@ static int snd_seq_ioctl_get_subscription(struct snd_seq_client *client, struct snd_seq_client_port *sport = NULL; result = -EINVAL; - if ((sender = snd_seq_client_use_ptr(subs->sender.client)) == NULL) + sender = snd_seq_client_use_ptr(subs->sender.client); + if (!sender) goto __end; - if ((sport = snd_seq_port_use_ptr(sender, subs->sender.port)) == NULL) + sport = snd_seq_port_use_ptr(sender, subs->sender.port); + if (!sport) goto __end; result = snd_seq_port_get_subscription(&sport->c_src, &subs->dest, subs); @@ -1955,9 +1970,11 @@ static int snd_seq_ioctl_query_subs(struct snd_seq_client *client, void *arg) struct list_head *p; int i; - if ((cptr = snd_seq_client_use_ptr(subs->root.client)) == NULL) + cptr = snd_seq_client_use_ptr(subs->root.client); + if (!cptr) goto __end; - if ((port = snd_seq_port_use_ptr(cptr, subs->root.port)) == NULL) + port = snd_seq_port_use_ptr(cptr, subs->root.port); + if (!port) goto __end; switch (subs->type) { |