diff options
Diffstat (limited to 'drivers/isdn/divert/divert_procfs.c')
| -rw-r--r-- | drivers/isdn/divert/divert_procfs.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/isdn/divert/divert_procfs.c b/drivers/isdn/divert/divert_procfs.c index 3697c409bec6..c53e2417e7d4 100644 --- a/drivers/isdn/divert/divert_procfs.c +++ b/drivers/isdn/divert/divert_procfs.c @@ -11,6 +11,7 @@ #include <linux/module.h> #include <linux/poll.h> +#include <linux/slab.h> #ifdef CONFIG_PROC_FS #include <linux/proc_fs.h> #else @@ -19,6 +20,7 @@ #include <linux/sched.h> #include <linux/isdnif.h> #include <net/net_namespace.h> +#include <linux/smp_lock.h> #include "isdn_divert.h" @@ -176,9 +178,7 @@ isdn_divert_close(struct inode *ino, struct file *filep) /*********/ /* IOCTL */ /*********/ -static int -isdn_divert_ioctl(struct inode *inode, struct file *file, - uint cmd, ulong arg) +static int isdn_divert_ioctl_unlocked(struct file *file, uint cmd, ulong arg) { divert_ioctl dioctl; int i; @@ -257,6 +257,17 @@ isdn_divert_ioctl(struct inode *inode, struct file *file, return copy_to_user((void __user *)arg, &dioctl, sizeof(dioctl)) ? -EFAULT : 0; } /* isdn_divert_ioctl */ +static long isdn_divert_ioctl(struct file *file, uint cmd, ulong arg) +{ + long ret; + + lock_kernel(); + ret = isdn_divert_ioctl_unlocked(file, cmd, arg); + unlock_kernel(); + + return ret; +} + static const struct file_operations isdn_fops = { .owner = THIS_MODULE, @@ -264,7 +275,7 @@ static const struct file_operations isdn_fops = .read = isdn_divert_read, .write = isdn_divert_write, .poll = isdn_divert_poll, - .ioctl = isdn_divert_ioctl, + .unlocked_ioctl = isdn_divert_ioctl, .open = isdn_divert_open, .release = isdn_divert_close, }; |