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authorDavid S. Miller <davem@davemloft.net>2008-07-18 02:39:39 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-18 02:39:39 -0700
commit49997d75152b3d23c53b0fa730599f2f74c92c65 (patch)
tree46e93126170d02cfec9505172e545732c1b69656 /drivers/sbus/char/cpwatchdog.c
parentpkt_sched: Make default qdisc nonshared-multiqueue safe. (diff)
parentMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 (diff)
downloadlinux-dev-49997d75152b3d23c53b0fa730599f2f74c92c65.tar.xz
linux-dev-49997d75152b3d23c53b0fa730599f2f74c92c65.zip
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: Documentation/powerpc/booting-without-of.txt drivers/atm/Makefile drivers/net/fs_enet/fs_enet-main.c drivers/pci/pci-acpi.c net/8021q/vlan.c net/iucv/iucv.c
Diffstat (limited to 'drivers/sbus/char/cpwatchdog.c')
-rw-r--r--drivers/sbus/char/cpwatchdog.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/sbus/char/cpwatchdog.c b/drivers/sbus/char/cpwatchdog.c
index 235703414370..23abfdfb44f1 100644
--- a/drivers/sbus/char/cpwatchdog.c
+++ b/drivers/sbus/char/cpwatchdog.c
@@ -279,6 +279,7 @@ static inline int wd_opt_timeout(void)
static int wd_open(struct inode *inode, struct file *f)
{
+ lock_kernel();
switch(iminor(inode))
{
case WD0_MINOR:
@@ -291,6 +292,7 @@ static int wd_open(struct inode *inode, struct file *f)
f->private_data = &wd_dev.watchdog[WD2_ID];
break;
default:
+ unlock_kernel();
return(-ENODEV);
}
@@ -304,11 +306,13 @@ static int wd_open(struct inode *inode, struct file *f)
(void *)wd_dev.regs)) {
printk("%s: Cannot register IRQ %d\n",
WD_OBPNAME, wd_dev.irq);
+ unlock_kernel();
return(-EBUSY);
}
wd_dev.initialized = 1;
}
+ unlock_kernel();
return(nonseekable_open(inode, f));
}