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use mutex instead of semaphore in isdn subsystem common functions

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The ISDN subsystem common functions use a semaphore as mutex. Use the
mutex API instead of the (binary) semaphore.

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Matthias Kaehlcke
2007-10-16 01:27:50 -07:00
committed by Linus Torvalds
parent 4d1ff58224
commit 4e3dfacaa0
2 changed files with 15 additions and 14 deletions
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include/linux/isdn.h
+2 -1
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@@ -167,6 +167,7 @@ typedef struct {
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/tcp.h>
#include <linux/mutex.h>
#define ISDN_TTY_MAJOR 43
#define ISDN_TTYAUX_MAJOR 44
@@ -616,7 +617,7 @@ typedef struct isdn_devt {
int v110emu[ISDN_MAX_CHANNELS]; /* V.110 emulator-mode 0=none */
atomic_t v110use[ISDN_MAX_CHANNELS]; /* Usage-Semaphore for stream */
isdn_v110_stream *v110[ISDN_MAX_CHANNELS]; /* V.110 private data */
struct semaphore sem; /* serialize list access*/
struct mutex mtx; /* serialize list access*/
unsigned long global_features;
} isdn_dev;