#include <linux/mm.h>
#include <linux/uio.h>
#include <linux/mutex.h>
+#include <linux/smp_lock.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/system.h>
{
int rv = 0;
- if (down_interruptible(&soft->dmareadlock))
+ if (mutex_lock_interruptible(&soft->dmareadlock))
return -ERESTARTSYS;
atomic_set(&soft->dmawrite_done, 0);
*off += len;
dmaread_exit:
- up(&soft->dmareadlock);
+ mutex_unlock(&soft->dmareadlock);
return rv;
}
struct mbcs_soft *soft;
int minor;
+ lock_kernel();
minor = iminor(ip);
+ /* Nothing protects access to this list... */
list_for_each_entry(soft, &soft_list, list) {
if (soft->nasid == minor) {
fp->private_data = soft->cxdev;
+ unlock_kernel();
return 0;
}
}
+ unlock_kernel();
return -ENODEV;
}
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);