diff options
Diffstat (limited to 'drivers/sbus/char/jsflash.c')
| -rw-r--r-- | drivers/sbus/char/jsflash.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/sbus/char/jsflash.c b/drivers/sbus/char/jsflash.c index e6d1fc8..a85ad05 100644 --- a/drivers/sbus/char/jsflash.c +++ b/drivers/sbus/char/jsflash.c @@ -383,18 +383,22 @@ static int jsf_ioctl_program(void __user *arg) return 0; } -static int jsf_ioctl(struct inode *inode, struct file *f, unsigned int cmd, - unsigned long arg) +static long jsf_ioctl(struct file *f, unsigned int cmd, unsigned long arg) { + lock_kernel(); int error = -ENOTTY; void __user *argp = (void __user *)arg; - if (!capable(CAP_SYS_ADMIN)) + if (!capable(CAP_SYS_ADMIN)) { + unlock_kernel(); return -EPERM; + } switch (cmd) { case JSFLASH_IDENT: - if (copy_to_user(argp, &jsf0.id, JSFIDSZ)) + if (copy_to_user(argp, &jsf0.id, JSFIDSZ)) { + unlock_kernel(); return -EFAULT; + } break; case JSFLASH_ERASE: error = jsf_ioctl_erase(arg); @@ -404,6 +408,7 @@ static int jsf_ioctl(struct inode *inode, struct file *f, unsigned int cmd, break; } + unlock_kernel(); return error; } @@ -439,7 +444,7 @@ static const struct file_operations jsf_fops = { .llseek = jsf_lseek, .read = jsf_read, .write = jsf_write, - .ioctl = jsf_ioctl, + .unlocked_ioctl = jsf_ioctl, .mmap = jsf_mmap, .open = jsf_open, .release = jsf_release, |