diff options
| -rw-r--r-- | drivers/char/mbcs.c | 7 | ||||
| -rw-r--r-- | drivers/char/mbcs.h | 2 |
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c index 3c5802a..035575c 100644 --- a/drivers/char/mbcs.c +++ b/drivers/char/mbcs.c @@ -23,6 +23,7 @@ #include <linux/device.h> #include <linux/mm.h> #include <linux/uio.h> +#include <linux/mutex.h> #include <asm/io.h> #include <asm/uaccess.h> #include <asm/system.h> @@ -281,7 +282,7 @@ static inline int mbcs_algo_start(struct mbcs_soft *soft) void *mmr_base = soft->mmr_base; union cm_control cm_control; - if (down_interruptible(&soft->algolock)) + if (mutex_lock_interruptible(&soft->algolock)) return -ERESTARTSYS; atomic_set(&soft->algo_done, 0); @@ -298,7 +299,7 @@ static inline int mbcs_algo_start(struct mbcs_soft *soft) cm_control.alg_go = 1; MBCS_MMR_SET(mmr_base, MBCS_CM_CONTROL, cm_control.cm_control_reg); - up(&soft->algolock); + mutex_unlock(&soft->algolock); return 0; } @@ -764,7 +765,7 @@ static int mbcs_probe(struct cx_dev *dev, const struct cx_device_id *id) init_MUTEX(&soft->dmawritelock); init_MUTEX(&soft->dmareadlock); - init_MUTEX(&soft->algolock); + mutex_init(&soft->algolock); mbcs_getdma_init(&soft->getdma); mbcs_putdma_init(&soft->putdma); diff --git a/drivers/char/mbcs.h b/drivers/char/mbcs.h index c9905a3..d4d97ab 100644 --- a/drivers/char/mbcs.h +++ b/drivers/char/mbcs.h @@ -539,7 +539,7 @@ struct mbcs_soft { atomic_t algo_done; struct semaphore dmawritelock; struct semaphore dmareadlock; - struct semaphore algolock; + struct mutex algolock; }; static int mbcs_open(struct inode *ip, struct file *fp); |
