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dpt_i20: BKL pushdown 

Add lock_kernel() calls to adpt_open()

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Corbet 2008-05-16 14:11:09 -06:00
parent 9aaf20cbf5
commit dea3f665d6
1 changed files with 5 additions and 0 deletions
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5
drivers/scsi/dpt_i2o.c
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@ -49,6 +49,7 @@ MODULE_DESCRIPTION("Adaptec I2O RAID Driver");
#include <linux/kernel.h> /* for printk */ #include <linux/kernel.h> /* for printk */
#include <linux/sched.h> #include <linux/sched.h>
#include <linux/reboot.h> #include <linux/reboot.h>
#include <linux/smp_lock.h>
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <linux/dma-mapping.h> #include <linux/dma-mapping.h>
@ -1727,10 +1728,12 @@ static int adpt_open(struct inode *inode, struct file *file)
int minor; int minor;
adpt_hba* pHba; adpt_hba* pHba;
lock_kernel();
//TODO check for root access //TODO check for root access
// //
minor = iminor(inode); minor = iminor(inode);
if (minor >= hba_count) { if (minor >= hba_count) {
unlock_kernel();
return -ENXIO; return -ENXIO;
} }
mutex_lock(&adpt_configuration_lock); mutex_lock(&adpt_configuration_lock);
@ -1741,6 +1744,7 @@ static int adpt_open(struct inode *inode, struct file *file)
} }
if (pHba == NULL) { if (pHba == NULL) {
mutex_unlock(&adpt_configuration_lock); mutex_unlock(&adpt_configuration_lock);
unlock_kernel();
return -ENXIO; return -ENXIO;
} }
@ -1751,6 +1755,7 @@ static int adpt_open(struct inode *inode, struct file *file)
pHba->in_use = 1; pHba->in_use = 1;
mutex_unlock(&adpt_configuration_lock); mutex_unlock(&adpt_configuration_lock);
unlock_kernel();
return 0; return 0;
} }