diff options
Diffstat (limited to 'drivers/usb/gadget/inode.c')
| -rw-r--r-- | drivers/usb/gadget/inode.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index f132a9219e11..04692d59fc1c 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -32,6 +32,7 @@ #include <asm/uaccess.h> #include <linux/slab.h> #include <linux/poll.h> +#include <linux/smp_lock.h> #include <linux/device.h> #include <linux/moduleparam.h> @@ -483,8 +484,7 @@ ep_release (struct inode *inode, struct file *fd) return 0; } -static int ep_ioctl (struct inode *inode, struct file *fd, - unsigned code, unsigned long value) +static long ep_ioctl(struct file *fd, unsigned code, unsigned long value) { struct ep_data *data = fd->private_data; int status; @@ -740,7 +740,7 @@ static const struct file_operations ep_io_operations = { .read = ep_read, .write = ep_write, - .ioctl = ep_ioctl, + .unlocked_ioctl = ep_ioctl, .release = ep_release, .aio_read = ep_aio_read, @@ -1294,15 +1294,18 @@ out: return mask; } -static int dev_ioctl (struct inode *inode, struct file *fd, - unsigned code, unsigned long value) +static long dev_ioctl (struct file *fd, unsigned code, unsigned long value) { struct dev_data *dev = fd->private_data; struct usb_gadget *gadget = dev->gadget; + long ret = -ENOTTY; - if (gadget->ops->ioctl) - return gadget->ops->ioctl (gadget, code, value); - return -ENOTTY; + if (gadget->ops->ioctl) { + lock_kernel(); + ret = gadget->ops->ioctl (gadget, code, value); + unlock_kernel(); + } + return ret; } /* used after device configuration */ @@ -1314,7 +1317,7 @@ static const struct file_operations ep0_io_operations = { .write = ep0_write, .fasync = ep0_fasync, .poll = ep0_poll, - .ioctl = dev_ioctl, + .unlocked_ioctl = dev_ioctl, .release = dev_release, }; @@ -1964,7 +1967,7 @@ static const struct file_operations dev_init_operations = { .open = dev_open, .write = dev_config, .fasync = ep0_fasync, - .ioctl = dev_ioctl, + .unlocked_ioctl = dev_ioctl, .release = dev_release, }; |