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| author |   Takashi Iwai <tiwai@suse.de> | 2021-06-17 15:47:42 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-06-17 16:02:26 +0200 |
| commit | c485f7e9863c4483f5d2e9a8da622b52d110d866 (patch) | |
| tree | 3ca7bb82b8302a44066b7d505a5d8dd4d01a765d | |
| parent | ALSA: firewire-motu: fix stream format for MOTU 8pre FireWire (diff) | |
| download | linux-dev-c485f7e9863c4483f5d2e9a8da622b52d110d866.tar.xz linux-dev-c485f7e9863c4483f5d2e9a8da622b52d110d866.zip | |
ALSA: seq: oss: Fix error check at system port creation
The system port creation in ALSA OSS sequencer was wrongly checked
against to the port number that can be never negative. The error code
should be checked rather against the ioctl call.
This patch corrects the error check.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210617134742.6321-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/core/seq/oss/seq_oss_init.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c index a53d81a86af2..0ee4a5081fd6 100644 --- a/sound/core/seq/oss/seq_oss_init.c +++ b/sound/core/seq/oss/seq_oss_init.c @@ -94,11 +94,10 @@ snd_seq_oss_create_client(void) port_callback.event_input = receive_announce; port->kernel = &port_callback; - call_ctl(SNDRV_SEQ_IOCTL_CREATE_PORT, port); - system_port = port->addr.port; - if (system_port >= 0) { + if (call_ctl(SNDRV_SEQ_IOCTL_CREATE_PORT, port) >= 0) { struct snd_seq_port_subscribe subs; + system_port = port->addr.port; memset(&subs, 0, sizeof(subs)); subs.sender.client = SNDRV_SEQ_CLIENT_SYSTEM; subs.sender.port = SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE; |