[PATCH] pcmcia: use mutexes instead of semaphores
Use mutexes in the PCMICA core, as they suffice for what needs to be done.
Includes a bugfix from and Signed-off-by Andrew Morton.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c
index 56b625d..8eceba7 100644
--- a/drivers/pcmcia/pcmcia_ioctl.c
+++ b/drivers/pcmcia/pcmcia_ioctl.c
@@ -269,9 +269,9 @@
/*
* Prevent this racing with a card insertion.
*/
- down(&s->skt_sem);
+ mutex_lock(&s->skt_mutex);
bus_rescan_devices(&pcmcia_bus_type);
- up(&s->skt_sem);
+ mutex_unlock(&s->skt_mutex);
/* check whether the driver indeed matched. I don't care if this
* is racy or not, because it can only happen on cardmgr access
@@ -606,9 +606,9 @@
}
break;
case DS_GET_FIRST_TUPLE:
- down(&s->skt_sem);
+ mutex_lock(&s->skt_mutex);
pcmcia_validate_mem(s);
- up(&s->skt_sem);
+ mutex_unlock(&s->skt_mutex);
ret = pccard_get_first_tuple(s, BIND_FN_ALL, &buf->tuple);
break;
case DS_GET_NEXT_TUPLE:
@@ -637,9 +637,9 @@
}
break;
case DS_VALIDATE_CIS:
- down(&s->skt_sem);
+ mutex_lock(&s->skt_mutex);
pcmcia_validate_mem(s);
- up(&s->skt_sem);
+ mutex_unlock(&s->skt_mutex);
ret = pccard_validate_cis(s, BIND_FN_ALL, &buf->cisinfo);
break;
case DS_SUSPEND_CARD: