diff options
Diffstat (limited to 'drivers/media/dvb/dvb-core/dmxdev.c')
| -rw-r--r-- | drivers/media/dvb/dvb-core/dmxdev.c | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c index 9ddc57909d49..425862ffb285 100644 --- a/drivers/media/dvb/dvb-core/dmxdev.c +++ b/drivers/media/dvb/dvb-core/dmxdev.c @@ -25,6 +25,7 @@ #include <linux/slab.h> #include <linux/vmalloc.h> #include <linux/module.h> +#include <linux/smp_lock.h> #include <linux/poll.h> #include <linux/ioctl.h> #include <linux/wait.h> @@ -963,7 +964,7 @@ dvb_demux_read(struct file *file, char __user *buf, size_t count, return ret; } -static int dvb_demux_do_ioctl(struct inode *inode, struct file *file, +static int dvb_demux_do_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dmxdev_filter *dmxdevfilter = file->private_data; @@ -1084,10 +1085,16 @@ static int dvb_demux_do_ioctl(struct inode *inode, struct file *file, return ret; } -static int dvb_demux_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long dvb_demux_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { - return dvb_usercopy(inode, file, cmd, arg, dvb_demux_do_ioctl); + int ret; + + lock_kernel(); + ret = dvb_usercopy(file, cmd, arg, dvb_demux_do_ioctl); + unlock_kernel(); + + return ret; } static unsigned int dvb_demux_poll(struct file *file, poll_table *wait) @@ -1139,7 +1146,7 @@ static int dvb_demux_release(struct inode *inode, struct file *file) static const struct file_operations dvb_demux_fops = { .owner = THIS_MODULE, .read = dvb_demux_read, - .ioctl = dvb_demux_ioctl, + .unlocked_ioctl = dvb_demux_ioctl, .open = dvb_demux_open, .release = dvb_demux_release, .poll = dvb_demux_poll, @@ -1152,7 +1159,7 @@ static struct dvb_device dvbdev_demux = { .fops = &dvb_demux_fops }; -static int dvb_dvr_do_ioctl(struct inode *inode, struct file *file, +static int dvb_dvr_do_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; @@ -1176,10 +1183,16 @@ static int dvb_dvr_do_ioctl(struct inode *inode, struct file *file, return ret; } -static int dvb_dvr_ioctl(struct inode *inode, struct file *file, +static long dvb_dvr_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - return dvb_usercopy(inode, file, cmd, arg, dvb_dvr_do_ioctl); + int ret; + + lock_kernel(); + ret = dvb_usercopy(file, cmd, arg, dvb_dvr_do_ioctl); + unlock_kernel(); + + return ret; } static unsigned int dvb_dvr_poll(struct file *file, poll_table *wait) @@ -1208,7 +1221,7 @@ static const struct file_operations dvb_dvr_fops = { .owner = THIS_MODULE, .read = dvb_dvr_read, .write = dvb_dvr_write, - .ioctl = dvb_dvr_ioctl, + .unlocked_ioctl = dvb_dvr_ioctl, .open = dvb_dvr_open, .release = dvb_dvr_release, .poll = dvb_dvr_poll, |