diff options
| -rw-r--r-- | drivers/isdn/capi/capi.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 7d2ca6b2564..623412e22c1 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -146,7 +146,7 @@ struct capidev { /* -------- global variables ---------------------------------------- */ -static DEFINE_RWLOCK(capidev_list_lock); +static DEFINE_MUTEX(capidev_list_lock); static LIST_HEAD(capidev_list); #ifdef CONFIG_ISDN_CAPI_MIDDLEWARE @@ -406,7 +406,6 @@ static struct capincci *capincci_find(struct capidev *cdev, u32 ncci) static struct capidev *capidev_alloc(void) { struct capidev *cdev; - unsigned long flags; cdev = kzalloc(sizeof(*cdev), GFP_KERNEL); if (!cdev) @@ -415,15 +414,19 @@ static struct capidev *capidev_alloc(void) mutex_init(&cdev->ncci_list_mtx); skb_queue_head_init(&cdev->recvqueue); init_waitqueue_head(&cdev->recvwait); - write_lock_irqsave(&capidev_list_lock, flags); + + mutex_lock(&capidev_list_lock); list_add_tail(&cdev->list, &capidev_list); - write_unlock_irqrestore(&capidev_list_lock, flags); + mutex_unlock(&capidev_list_lock); + return cdev; } static void capidev_free(struct capidev *cdev) { - unsigned long flags; + mutex_lock(&capidev_list_lock); + list_del(&cdev->list); + mutex_unlock(&capidev_list_lock); if (cdev->ap.applid) { capi20_release(&cdev->ap); @@ -435,9 +438,6 @@ static void capidev_free(struct capidev *cdev) capincci_free(cdev, 0xffffffff); mutex_unlock(&cdev->ncci_list_mtx); - write_lock_irqsave(&capidev_list_lock, flags); - list_del(&cdev->list); - write_unlock_irqrestore(&capidev_list_lock, flags); kfree(cdev); } @@ -1431,7 +1431,7 @@ static int capi20_proc_show(struct seq_file *m, void *v) struct capidev *cdev; struct list_head *l; - read_lock(&capidev_list_lock); + mutex_lock(&capidev_list_lock); list_for_each(l, &capidev_list) { cdev = list_entry(l, struct capidev, list); seq_printf(m, "0 %d %lu %lu %lu %lu\n", @@ -1441,7 +1441,7 @@ static int capi20_proc_show(struct seq_file *m, void *v) cdev->ap.nsentctlpkt, cdev->ap.nsentdatapkt); } - read_unlock(&capidev_list_lock); + mutex_unlock(&capidev_list_lock); return 0; } @@ -1468,7 +1468,7 @@ static int capi20ncci_proc_show(struct seq_file *m, void *v) struct capincci *np; struct list_head *l; - read_lock(&capidev_list_lock); + mutex_lock(&capidev_list_lock); list_for_each(l, &capidev_list) { cdev = list_entry(l, struct capidev, list); for (np=cdev->nccis; np; np = np->next) { @@ -1477,7 +1477,7 @@ static int capi20ncci_proc_show(struct seq_file *m, void *v) np->ncci); } } - read_unlock(&capidev_list_lock); + mutex_unlock(&capidev_list_lock); return 0; } |