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| author | Arnd Bergmann <arnd@arndb.de> | 2008-05-20 19:16:18 +0200 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-07-02 15:06:23 -0600 |
| commit | dca67e9d3db27b090259b696e1166615f40099e2 (patch) | |
| tree | 64654da7e8d990ea7a7bc8fad61ab00804c82a09 /drivers/s390/char/monwriter.c | |
| parent | 6ce46a435a3ac9e706d09a3075cbc60ed72d37db (diff) | |
| download | linux-3.10-dca67e9d3db27b090259b696e1166615f40099e2.tar.gz linux-3.10-dca67e9d3db27b090259b696e1166615f40099e2.tar.bz2 linux-3.10-dca67e9d3db27b090259b696e1166615f40099e2.zip | |
monwriter: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/s390/char/monwriter.c')
| -rw-r--r-- | drivers/s390/char/monwriter.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c index a86c0534cd4..4d71aa8c1a7 100644 --- a/drivers/s390/char/monwriter.c +++ b/drivers/s390/char/monwriter.c @@ -12,6 +12,7 @@ #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/errno.h> +#include <linux/smp_lock.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/miscdevice.h> @@ -179,10 +180,12 @@ static int monwrite_open(struct inode *inode, struct file *filp) monpriv = kzalloc(sizeof(struct mon_private), GFP_KERNEL); if (!monpriv) return -ENOMEM; + lock_kernel(); INIT_LIST_HEAD(&monpriv->list); monpriv->hdr_to_read = sizeof(monpriv->hdr); mutex_init(&monpriv->thread_mutex); filp->private_data = monpriv; + unlock_kernel(); return nonseekable_open(inode, filp); } |