diff options
| -rw-r--r-- | package/rtc-rv5c386a/src/rtc.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/package/rtc-rv5c386a/src/rtc.c b/package/rtc-rv5c386a/src/rtc.c index 34d0a83..5a01810 100644 --- a/package/rtc-rv5c386a/src/rtc.c +++ b/package/rtc-rv5c386a/src/rtc.c @@ -52,6 +52,7 @@ #include <linux/rtc.h> #include <linux/delay.h> #include <linux/version.h> +#include <linux/smp_lock.h> #include <asm/uaccess.h> #include <asm/system.h> @@ -461,8 +462,7 @@ static ssize_t rtc_read(UNUSED struct file *filp, char *buf, size_t count, return len; } -static int rtc_ioctl(UNUSED struct inode *inode, UNUSED struct file *filp, - unsigned int cmd, unsigned long arg) +static int rtc_do_ioctl(unsigned int cmd, unsigned long arg) { struct rtc_time rtc_tm; @@ -492,14 +492,23 @@ static int rtc_ioctl(UNUSED struct inode *inode, UNUSED struct file *filp, return 0; } -static struct file_operations rtc_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = rtc_read, - .write = rtc_write, - .ioctl = rtc_ioctl, - .open = rtc_open, - .release = rtc_release, +static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + long ret; + lock_kernel(); + ret = rtc_do_ioctl(cmd, arg); + unlock_kernel(); + return ret; +} + +static const struct file_operations rtc_fops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .read = rtc_read, + .write = rtc_write, + .unlocked_ioctl = rtc_ioctl, + .open = rtc_open, + .release = rtc_release, }; static struct miscdevice rtc_dev = { |