From 764a4a8e54cdd6efc5928f876aa9e35778f22377 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Thu, 15 May 2008 10:01:17 -0600 Subject: drivers/s390: cdev lock_kernel() pushdown Signed-off-by: Jonathan Corbet --- drivers/s390/char/vmlogrdr.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers/s390/char/vmlogrdr.c') diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c index e848734..d101328 100644 --- a/drivers/s390/char/vmlogrdr.c +++ b/drivers/s390/char/vmlogrdr.c @@ -25,6 +25,7 @@ #include #include #include +#include #include @@ -319,9 +320,11 @@ static int vmlogrdr_open (struct inode *inode, struct file *filp) return -ENOSYS; /* Besure this device hasn't already been opened */ + lock_kernel(); spin_lock_bh(&logptr->priv_lock); if (logptr->dev_in_use) { spin_unlock_bh(&logptr->priv_lock); + unlock_kernel(); return -EBUSY; } logptr->dev_in_use = 1; @@ -365,7 +368,9 @@ static int vmlogrdr_open (struct inode *inode, struct file *filp) || (logptr->iucv_path_severed)); if (logptr->iucv_path_severed) goto out_record; - return nonseekable_open(inode, filp); + ret = nonseekable_open(inode, filp); + unlock_kernel(); + return ret; out_record: if (logptr->autorecording) @@ -375,6 +380,7 @@ out_path: logptr->path = NULL; out_dev: logptr->dev_in_use = 0; + unlock_kernel(); return -EIO; } -- cgit v1.1