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authorJonathan Corbet <corbet@lwn.net>2008-05-18 15:32:43 -0600
committerJonathan Corbet <corbet@lwn.net>2008-06-20 14:05:53 -0600
commitf2b9857eee17797541b845782ade4d7a9d50f843 (patch)
tree914a00afee2ff953199f99f7cf869e3fd83b36bd /drivers/scsi/megaraid/megaraid_sas.c
parent0b2806768899dba5967bcd4a3b93eaed9a1dc4f3 (diff)
Add a bunch of cycle_kernel_lock() calls
All of the open() functions which don't need the BKL on their face may still depend on its acquisition to serialize opens against driver initialization. So make those functions acquire then release the BKL to be on the safe side. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas.c')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 81374b7c555..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>
@@ -2860,10 +2861,10 @@ static void megasas_shutdown(struct pci_dev *pdev)
/**
* megasas_mgmt_open - char node "open" entry point
- * No BKL is needed here.
*/
static int megasas_mgmt_open(struct inode *inode, struct file *filep)
{
+ cycle_kernel_lock();
/*
* Allow only those users with admin rights
*/