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path: root/drivers/scsi/megaraid/megaraid_sas.c
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Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas.c')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 7d84c8bbcf3..fc7ac158476 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -33,6 +33,7 @@
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
+#include <linux/smp_lock.h>
#include <linux/uio.h>
#include <asm/uaccess.h>
#include <linux/fs.h>
@@ -2863,6 +2864,7 @@ static void megasas_shutdown(struct pci_dev *pdev)
*/
static int megasas_mgmt_open(struct inode *inode, struct file *filep)
{
+ cycle_kernel_lock();
/*
* Allow only those users with admin rights
*/