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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.c
parent0b2806768899dba5967bcd4a3b93eaed9a1dc4f3 (diff)
downloadop-kernel-dev-f2b9857eee17797541b845782ade4d7a9d50f843.zip
op-kernel-dev-f2b9857eee17797541b845782ade4d7a9d50f843.tar.gz
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.c')
-rw-r--r--drivers/scsi/megaraid.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index c9aa2c4..28c9da7 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -46,6 +46,7 @@
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
+#include <linux/smp_lock.h>
#include <scsi/scsicam.h>
#include "scsi.h"
@@ -3273,12 +3274,11 @@ mega_init_scb(adapter_t *adapter)
*
* Routines for the character/ioctl interface to the driver. Find out if this
* is a valid open.
- *
- * No BKL needed here.
*/
static int
megadev_open (struct inode *inode, struct file *filep)
{
+ cycle_kernel_lock();
/*
* Only allow superuser to access private ioctl interface
*/
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