evie/android_kernel_oneplus_msm8998
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aacraid: cdev lock_kernel() pushdown

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Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Corbet 2008-05-15 16:01:47 -06:00
parent 647d87bd1b
commit d4514d1bed
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/aacraid/linit.c
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@ -38,6 +38,7 @@
#include <linux/moduleparam.h> #include <linux/moduleparam.h>
#include <linux/pci.h> #include <linux/pci.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <linux/syscalls.h> #include <linux/syscalls.h>
#include <linux/delay.h> #include <linux/delay.h>
@ -667,6 +668,7 @@ static int aac_cfg_open(struct inode *inode, struct file *file)
unsigned minor_number = iminor(inode); unsigned minor_number = iminor(inode);
int err = -ENODEV; int err = -ENODEV;
lock_kernel(); /* BKL pushdown: nothing else protects this list */
list_for_each_entry(aac, &aac_devices, entry) { list_for_each_entry(aac, &aac_devices, entry) {
if (aac->id == minor_number) { if (aac->id == minor_number) {
file->private_data = aac; file->private_data = aac;
@ -674,6 +676,7 @@ static int aac_cfg_open(struct inode *inode, struct file *file)
break; break;
} }
} }
unlock_kernel();
return err; return err;
} }