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path: root/drivers/scsi/megaraid/megaraid_mm.c
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Diffstat (limited to 'drivers/scsi/megaraid/megaraid_mm.c')
-rw-r--r--drivers/scsi/megaraid/megaraid_mm.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c
index 41f82f7..42770a1 100644
--- a/drivers/scsi/megaraid/megaraid_mm.c
+++ b/drivers/scsi/megaraid/megaraid_mm.c
@@ -16,11 +16,12 @@
*/
#include <linux/sched.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include "megaraid_mm.h"
// Entry points for char node driver
+static DEFINE_MUTEX(mraid_mm_mutex);
static int mraid_mm_open(struct inode *, struct file *);
static long mraid_mm_unlocked_ioctl(struct file *, uint, unsigned long);
@@ -98,7 +99,6 @@ mraid_mm_open(struct inode *inode, struct file *filep)
*/
if (!capable(CAP_SYS_ADMIN)) return (-EACCES);
- cycle_kernel_lock();
return 0;
}
@@ -224,9 +224,9 @@ mraid_mm_unlocked_ioctl(struct file *filep, unsigned int cmd,
int err;
/* inconsistant: mraid_mm_compat_ioctl doesn't take the BKL */
- lock_kernel();
+ mutex_lock(&mraid_mm_mutex);
err = mraid_mm_ioctl(filep, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&mraid_mm_mutex);
return err;
}
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