MBCS: Convert the semaphore dmareadlock to the mutex API
Signed-off-by: Matthias Kaehlcke <[EMAIL PROTECTED]>
--- kernel.orig/linux-2.6/drivers/char/mbcs.c 2007-10-23 17:43:36.000000000
+0200
+++ kernel/linux-2.6/drivers/char/mbcs.c 2007-10-23 17:44:11.000000000
+0200
@@ -348,7 +348,7 @@
{
int rv = 0;
- if (down_interruptible(&soft->dmareadlock))
+ if (mutex_lock_interruptible(&soft->dmareadlock))
return -ERESTARTSYS;
atomic_set(&soft->dmawrite_done, 0);
@@ -373,7 +373,7 @@
*off += len;
dmaread_exit:
- up(&soft->dmareadlock);
+ mutex_unlock(&soft->dmareadlock);
return rv;
}
@@ -765,7 +765,7 @@
init_waitqueue_head(&soft->algo_queue);
mutex_init(&soft->dmawritelock);
- init_MUTEX(&soft->dmareadlock);
+ mutex_init(&soft->dmareadlock);
mutex_init(&soft->algolock);
mbcs_getdma_init(&soft->getdma);
Index: kernel/linux-2.6/drivers/char/mbcs.h
===================================================================
--- kernel.orig/linux-2.6/drivers/char/mbcs.h 2007-10-23 17:43:38.000000000
+0200
+++ kernel/linux-2.6/drivers/char/mbcs.h 2007-10-23 17:44:33.000000000
+0200
@@ -538,7 +538,7 @@
atomic_t dmaread_done;
atomic_t algo_done;
struct mutex dmawritelock;
- struct semaphore dmareadlock;
+ struct mutex dmareadlock;
struct mutex algolock;
};
--
Matthias Kaehlcke
Linux Application Developer
Barcelona
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(Isaac Newton)
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