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authorJonathan Corbet <corbet@lwn.net>2008-05-16 14:11:09 -0600
committerJonathan Corbet <corbet@lwn.net>2008-06-20 14:05:52 -0600
commitdea3f665d6fa263a9870a54e9f8cfd146016f140 (patch)
treedb875a35dcc762c01439588afa5fb542bac8f8e3 /drivers/scsi/dpt_i2o.c
parent9aaf20cbf5b7cccd45495326cba0b35b2884e6b3 (diff)
dpt_i20: BKL pushdown
Add lock_kernel() calls to adpt_open() Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'drivers/scsi/dpt_i2o.c')
-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");
#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;
}