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| author | Arnd Bergmann <arnd@arndb.de> | 2008-05-20 19:16:57 +0200 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-07-02 23:06:26 +0200 |
| commit | 7eb500d1a0408c37d0c0360f066f8b7701835d68 (patch) | |
| tree | 5ef59f59e2f79dcb35a5c8947d41ce1855811ca6 /arch/um/drivers/random.c | |
| parent | uml-mmapper: BKL pushdown (diff) | |
| download | linux-7eb500d1a0408c37d0c0360f066f8b7701835d68.tar.xz linux-7eb500d1a0408c37d0c0360f066f8b7701835d68.zip | |
uml-random: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/um/drivers/random.c')
| -rw-r--r-- | arch/um/drivers/random.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/um/drivers/random.c b/arch/um/drivers/random.c index 4949044773ba..6eabb7022a2d 100644 --- a/arch/um/drivers/random.c +++ b/arch/um/drivers/random.c @@ -7,6 +7,7 @@ * of the GNU General Public License, incorporated herein by reference. */ #include <linux/sched.h> +#include <linux/smp_lock.h> #include <linux/module.h> #include <linux/fs.h> #include <linux/interrupt.h> @@ -33,6 +34,8 @@ static DECLARE_WAIT_QUEUE_HEAD(host_read_wait); static int rng_dev_open (struct inode *inode, struct file *filp) { + cycle_kernel_lock(); + /* enforce read-only access to this chrdev */ if ((filp->f_mode & FMODE_READ) == 0) return -EINVAL; |