dpt_i20: BKL pushdown

Add lock_kernel() calls to adpt_open()

Signed-off-by: Jonathan Corbet <corbet@lwn.net>

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");
 #include <linux/kernel.h>       /* for printk */
 #include <linux/sched.h>
 #include <linux/reboot.h>
+#include <linux/smp_lock.h>
 #include <linux/spinlock.h>
 #include <linux/dma-mapping.h>
 
@@ -1727,10 +1728,12 @@ static int adpt_open(struct inode *inode, struct file *file)
         int minor;
         adpt_hba* pHba;
 
+        lock_kernel();
         //TODO check for root access
         //
         minor = iminor(inode);
         if (minor >= hba_count) {
+                unlock_kernel();
                 return -ENXIO;
         }
         mutex_lock(&adpt_configuration_lock);
@@ -1741,6 +1744,7 @@ static int adpt_open(struct inode *inode, struct file *file)
         }
         if (pHba == NULL) {
                 mutex_unlock(&adpt_configuration_lock);
+                unlock_kernel();
                 return -ENXIO;
         }
 
@@ -1751,6 +1755,7 @@ static int adpt_open(struct inode *inode, struct file *file)
 
         pHba->in_use = 1;
         mutex_unlock(&adpt_configuration_lock);
+        unlock_kernel();
 
         return 0;
 }