Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6

* 'bkl-removal' of git://git.lwn.net/linux-2.6: (146 commits)
  IB/umad: BKL is not needed for ib_umad_open()
  IB/uverbs: BKL is not needed for ib_uverbs_open()
  bf561-coreb: BKL unneeded for open()
  Call fasync() functions without the BKL
  snd/PCM: fasync BKL pushdown
  ipmi: fasync BKL pushdown
  ecryptfs: fasync BKL pushdown
  Bluetooth VHCI: fasync BKL pushdown
  tty_io: fasync BKL pushdown
  tun: fasync BKL pushdown
  i2o: fasync BKL pushdown
  mpt: fasync BKL pushdown
  Remove BKL from remote_llseek v2
  Make FAT users happier by not deadlocking
  x86-mce: BKL pushdown
  vmwatchdog: BKL pushdown
  vmcp: BKL pushdown
  via-pmu: BKL pushdown
  uml-random: BKL pushdown
  uml-mmapper: BKL pushdown
  ...

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/um/drivers/harddog_kern.c b/arch/um/drivers/harddog_kern.c
index a9ad4bd..d332503 100644
--- a/arch/um/drivers/harddog_kern.c
+++ b/arch/um/drivers/harddog_kern.c
@@ -66,6 +66,7 @@ static int harddog_open(struct inode *inode, struct file *file)
 	int err = -EBUSY;
 	char *sock = NULL;
 
+	lock_kernel();
 	spin_lock(&lock);
 	if(timer_alive)
 		goto err;
@@ -82,9 +83,11 @@ static int harddog_open(struct inode *inode, struct file *file)
 
 	timer_alive = 1;
 	spin_unlock(&lock);
+	unlock_kernel();
 	return nonseekable_open(inode, file);
 err:
 	spin_unlock(&lock);
+	unlock_kernel();
 	return err;
 }