diff options
| author | Shaun Ruffell <sruffell@digium.com> | 2009-05-01 16:42:45 +0000 |
|---|---|---|
| committer | Shaun Ruffell <sruffell@digium.com> | 2009-05-01 16:42:45 +0000 |
| commit | c8a6832d4237a30bf121c9ddebce4e16b1f26884 (patch) | |
| tree | f9426f566a78c86be7c464caa694f97dabd70306 | |
| parent | bed6f2d95d74e8fac9d20ff2bc48fa204624eea5 (diff) | |
wctc4xxp: spin_trylock_irqsave is not defined on some kernels.
DAHDI-253
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@6551 a0bf4364-ded3-4de4-8d8a-66a801d63aff
| -rw-r--r-- | drivers/dahdi/wctc4xxp/base.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/dahdi/wctc4xxp/base.c b/drivers/dahdi/wctc4xxp/base.c index aea02d6..3942251 100644 --- a/drivers/dahdi/wctc4xxp/base.c +++ b/drivers/dahdi/wctc4xxp/base.c @@ -2049,8 +2049,14 @@ wctc4xxp_handle_receive_ring(struct wcdte *wc) /* If we can't grab this lock, another thread must already be checking * the receive ring...so we should just finish up, and we'll try again * later. */ +#if defined(spin_trylock_irqsave) if (!spin_trylock_irqsave(&wc->rx_lock, flags)) return 0; +#else + if (spin_is_locked(&wc->rx_lock)) + return 0; + spin_lock_irqsave(&wc->rx_lock, flags); +#endif while ((cmd = wctc4xxp_retrieve(wc->rxd))) { ++count; |