diff options
| author | Ming Lei <ming.lei@canonical.com> | 2013-08-17 19:25:07 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-10-02 13:48:13 +0400 |
| commit | 503f2de78d8358ca6feee07871ac6a0cf160a75e (patch) | |
| tree | d1c19652178c38ee6d4da34867f9c7d5b9c072f0 /drivers/media/dvb-core | |
| parent | cbbe1c03e762abd3303434c787963c613f3e7da8 (diff) | |
| download | linux-503f2de78d8358ca6feee07871ac6a0cf160a75e.tar.xz | |
[media] media: dvb-core: prepare for enabling irq in complete()
Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().
These functions may be called inside URB->complete(), so use
spin_lock_irqsave().
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/dvb-core')
| -rw-r--r-- | drivers/media/dvb-core/dvb_demux.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/media/dvb-core/dvb_demux.c b/drivers/media/dvb-core/dvb_demux.c index 3485655fa082..58de4410c525 100644 --- a/drivers/media/dvb-core/dvb_demux.c +++ b/drivers/media/dvb-core/dvb_demux.c @@ -476,7 +476,9 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf) void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf, size_t count) { - spin_lock(&demux->lock); + unsigned long flags; + + spin_lock_irqsave(&demux->lock, flags); while (count--) { if (buf[0] == 0x47) @@ -484,7 +486,7 @@ void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf, buf += 188; } - spin_unlock(&demux->lock); + spin_unlock_irqrestore(&demux->lock, flags); } EXPORT_SYMBOL(dvb_dmx_swfilter_packets); @@ -519,8 +521,9 @@ static inline void _dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, { int p = 0, i, j; const u8 *q; + unsigned long flags; - spin_lock(&demux->lock); + spin_lock_irqsave(&demux->lock, flags); if (demux->tsbufp) { /* tsbuf[0] is now 0x47. */ i = demux->tsbufp; @@ -564,7 +567,7 @@ static inline void _dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, } bailout: - spin_unlock(&demux->lock); + spin_unlock_irqrestore(&demux->lock, flags); } void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count) @@ -581,11 +584,13 @@ EXPORT_SYMBOL(dvb_dmx_swfilter_204); void dvb_dmx_swfilter_raw(struct dvb_demux *demux, const u8 *buf, size_t count) { - spin_lock(&demux->lock); + unsigned long flags; + + spin_lock_irqsave(&demux->lock, flags); demux->feed->cb.ts(buf, count, NULL, 0, &demux->feed->feed.ts, DMX_OK); - spin_unlock(&demux->lock); + spin_unlock_irqrestore(&demux->lock, flags); } EXPORT_SYMBOL(dvb_dmx_swfilter_raw); |