From 3462032d66703ef7721329b44fe2dac4aaef475d Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Fri, 16 May 2008 14:17:33 -0600 Subject: divamnt: BKL pushdown Put explicit lock_kernel() calls into maint_open(). Signed-off-by: Jonathan Corbet --- drivers/isdn/hardware/eicon/divamnt.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'drivers/isdn/hardware/eicon') diff --git a/drivers/isdn/hardware/eicon/divamnt.c b/drivers/isdn/hardware/eicon/divamnt.c index c909289..1e85f74 100644 --- a/drivers/isdn/hardware/eicon/divamnt.c +++ b/drivers/isdn/hardware/eicon/divamnt.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include "platform.h" @@ -127,14 +128,19 @@ static unsigned int maint_poll(struct file *file, poll_table * wait) static int maint_open(struct inode *ino, struct file *filep) { + int ret; + + lock_kernel(); /* only one open is allowed, so we test it atomically */ if (test_and_set_bit(0, &opened)) - return (-EBUSY); - - filep->private_data = NULL; - - return nonseekable_open(ino, filep); + ret = -EBUSY; + else { + filep->private_data = NULL; + ret = nonseekable_open(ino, filep); + } + unlock_kernel(); + return ret; } static int maint_close(struct inode *ino, struct file *filep) -- cgit v1.1