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MBCS: convert dmawritelock to mutex

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MBCS: Convert the semaphore dmawritelock to the mutex API

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
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 2008-02-07 00:15:24 -08:00 committed by Linus Torvalds
parent a40ba84957
commit 46bca69682
2 changed files with 4 additions and 4 deletions
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6
drivers/char/mbcs.c
View File

@ -310,7 +310,7 @@ do_mbcs_sram_dmawrite(struct mbcs_soft *soft, uint64_t hostAddr,
{
int rv = 0;
if (down_interruptible(&soft->dmawritelock))
if (mutex_lock_interruptible(&soft->dmawritelock))
return -ERESTARTSYS;
atomic_set(&soft->dmawrite_done, 0);
@ -336,7 +336,7 @@ do_mbcs_sram_dmawrite(struct mbcs_soft *soft, uint64_t hostAddr,
*off += len;
dmawrite_exit:
up(&soft->dmawritelock);
mutex_unlock(&soft->dmawritelock);
return rv;
}
@ -763,7 +763,7 @@ static int mbcs_probe(struct cx_dev *dev, const struct cx_device_id *id)
init_waitqueue_head(&soft->dmaread_queue);
init_waitqueue_head(&soft->algo_queue);
init_MUTEX(&soft->dmawritelock);
mutex_init(&soft->dmawritelock);
init_MUTEX(&soft->dmareadlock);
mutex_init(&soft->algolock);

2
drivers/char/mbcs.h
View File

@ -537,7 +537,7 @@ struct mbcs_soft {
atomic_t dmawrite_done;
atomic_t dmaread_done;
atomic_t algo_done;
struct semaphore dmawritelock;
struct mutex dmawritelock;
struct semaphore dmareadlock;
struct mutex algolock;
};