Messages in this thread | | | Date | Mon, 26 May 2008 19:29:14 +0200 | From | Michal Schmidt <> | Subject | Re: [PATCH] net: wireless: airo semaphore to mutex |
| |
On Thu, 22 May 2008 16:21:03 -0700 Daniel Walker <dwalker@mvista.com> wrote:
> Signed-off-by: Daniel Walker <dwalker@mvista.com> > > --- > drivers/net/wireless/airo.c | 107 > ++++++++++++++++++++++---------------------- 1 file changed, 54 > insertions(+), 53 deletions(-) > > Index: linux-2.6.25/drivers/net/wireless/airo.c > =================================================================== > --- linux-2.6.25.orig/drivers/net/wireless/airo.c > +++ linux-2.6.25/drivers/net/wireless/airo.c
> @@ -3211,7 +3212,7 @@ static irqreturn_t airo_interrupt(int ir > set_bit(FLAG_UPDATE_UNI, > &apriv->flags); set_bit(FLAG_UPDATE_MULTI, &apriv->flags); > > - if (down_trylock(&apriv->sem) != 0) { > + if (mutex_trylock(&apriv->lock) == > 0) { set_bit(JOB_EVENT, &apriv->jobs); > wake_up_interruptible(&apriv->thr_wait); > } else
Mutexes are not allowed in interrupt context, not even mutex_trylock.
Michal
| |