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| author | Clemens Ladisch <clemens@ladisch.de> | 2011-03-15 07:55:50 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-03-15 08:42:28 +0100 |
| commit | 5b2599a07eaee53d713fb68f5343eba88fa249c0 (patch) | |
| tree | 43cd8d7bebd8b1d9f86ca8f2db69d985da82e94f /sound/firewire/cmp.c | |
| parent | be454366324b31922a2460c63c65d5e3cebe9641 (diff) | |
| download | linux-5b2599a07eaee53d713fb68f5343eba88fa249c0.tar.gz linux-5b2599a07eaee53d713fb68f5343eba88fa249c0.tar.bz2 linux-5b2599a07eaee53d713fb68f5343eba88fa249c0.zip | |
ALSA: firewire-lib: allocate DMA buffer separately
For correct cache coherency on some architectures, DMA buffers must be
allocated in a different cache line than data that is concurrently used
by the CPU.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/cmp.c')
| -rw-r--r-- | sound/firewire/cmp.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c index c992dab4bb95..4a37f3a6fab9 100644 --- a/sound/firewire/cmp.c +++ b/sound/firewire/cmp.c @@ -117,9 +117,12 @@ int cmp_connection_init(struct cmp_connection *c, if (ipcr_index >= (impr & IMPR_PLUGS_MASK)) return -EINVAL; + err = fw_iso_resources_init(&c->resources, unit); + if (err < 0) + return err; + c->connected = false; mutex_init(&c->mutex); - fw_iso_resources_init(&c->resources, unit); c->last_pcr_value = cpu_to_be32(0x80000000); c->pcr_index = ipcr_index; c->max_speed = (impr & IMPR_SPEED_MASK) >> IMPR_SPEED_SHIFT; |