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authorJonathan Corbet <corbet@lwn.net>2008-05-19 01:32:43 +0400
committerJonathan Corbet <corbet@lwn.net>2008-06-21 00:05:53 +0400
commitf2b9857eee17797541b845782ade4d7a9d50f843 (patch)
tree914a00afee2ff953199f99f7cf869e3fd83b36bd /drivers/isdn/hardware
parent0b2806768899dba5967bcd4a3b93eaed9a1dc4f3 (diff)
downloadlinux-f2b9857eee17797541b845782ade4d7a9d50f843.tar.xz
Add a bunch of cycle_kernel_lock() calls
All of the open() functions which don't need the BKL on their face may still depend on its acquisition to serialize opens against driver initialization. So make those functions acquire then release the BKL to be on the safe side. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'drivers/isdn/hardware')
-rw-r--r--drivers/isdn/hardware/eicon/divasi.c2
-rw-r--r--drivers/isdn/hardware/eicon/divasmain.c2
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/eicon/divasi.c b/drivers/isdn/hardware/eicon/divasi.c
index 78f141e77466..f4969fe0a055 100644
--- a/drivers/isdn/hardware/eicon/divasi.c
+++ b/drivers/isdn/hardware/eicon/divasi.c
@@ -17,6 +17,7 @@
#include <linux/poll.h>
#include <linux/proc_fs.h>
#include <linux/skbuff.h>
+#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#include "platform.h"
@@ -400,6 +401,7 @@ static unsigned int um_idi_poll(struct file *file, poll_table * wait)
static int um_idi_open(struct inode *inode, struct file *file)
{
+ cycle_kernel_lock();
return (0);
}
diff --git a/drivers/isdn/hardware/eicon/divasmain.c b/drivers/isdn/hardware/eicon/divasmain.c
index 5fcbdccd7a53..65c95019a9ae 100644
--- a/drivers/isdn/hardware/eicon/divasmain.c
+++ b/drivers/isdn/hardware/eicon/divasmain.c
@@ -21,6 +21,7 @@
#include <linux/list.h>
#include <linux/poll.h>
#include <linux/kmod.h>
+#include <linux/smp_lock.h>
#include "platform.h"
#undef ID_MASK
@@ -580,6 +581,7 @@ xdi_copy_from_user(void *os_handle, void *dst, const void __user *src, int lengt
*/
static int divas_open(struct inode *inode, struct file *file)
{
+ cycle_kernel_lock();
return (0);
}