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authorJonathan Corbet <corbet@lwn.net>2008-05-16 16:11:09 -0400
committerJonathan Corbet <corbet@lwn.net>2008-06-20 16:05:52 -0400
commitdea3f665d6fa263a9870a54e9f8cfd146016f140 (patch)
treedb875a35dcc762c01439588afa5fb542bac8f8e3
parent9aaf20cbf5b7cccd45495326cba0b35b2884e6b3 (diff)
dpt_i20: BKL pushdown
Add lock_kernel() calls to adpt_open() Signed-off-by: Jonathan Corbet <corbet@lwn.net>
-rw-r--r--drivers/scsi/dpt_i2o.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 8508816f303d..2bc30e32b67a 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -49,6 +49,7 @@ MODULE_DESCRIPTION("Adaptec I2O RAID Driver");
49#include <linux/kernel.h> /* for printk */ 49#include <linux/kernel.h> /* for printk */
50#include <linux/sched.h> 50#include <linux/sched.h>
51#include <linux/reboot.h> 51#include <linux/reboot.h>
52#include <linux/smp_lock.h>
52#include <linux/spinlock.h> 53#include <linux/spinlock.h>
53#include <linux/dma-mapping.h> 54#include <linux/dma-mapping.h>
54 55
@@ -1727,10 +1728,12 @@ static int adpt_open(struct inode *inode, struct file *file)
1727 int minor; 1728 int minor;
1728 adpt_hba* pHba; 1729 adpt_hba* pHba;
1729 1730
1731 lock_kernel();
1730 //TODO check for root access 1732 //TODO check for root access
1731 // 1733 //
1732 minor = iminor(inode); 1734 minor = iminor(inode);
1733 if (minor >= hba_count) { 1735 if (minor >= hba_count) {
1736 unlock_kernel();
1734 return -ENXIO; 1737 return -ENXIO;
1735 } 1738 }
1736 mutex_lock(&adpt_configuration_lock); 1739 mutex_lock(&adpt_configuration_lock);
@@ -1741,6 +1744,7 @@ static int adpt_open(struct inode *inode, struct file *file)
1741 } 1744 }
1742 if (pHba == NULL) { 1745 if (pHba == NULL) {
1743 mutex_unlock(&adpt_configuration_lock); 1746 mutex_unlock(&adpt_configuration_lock);
1747 unlock_kernel();
1744 return -ENXIO; 1748 return -ENXIO;
1745 } 1749 }
1746 1750
@@ -1751,6 +1755,7 @@ static int adpt_open(struct inode *inode, struct file *file)
1751 1755
1752 pHba->in_use = 1; 1756 pHba->in_use = 1;
1753 mutex_unlock(&adpt_configuration_lock); 1757 mutex_unlock(&adpt_configuration_lock);
1758 unlock_kernel();
1754 1759
1755 return 0; 1760 return 0;
1756} 1761}