diff options
| author | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-07-23 14:10:23 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-07-23 14:10:23 -0300 |
| commit | a4e0d9af403d099e751797f6cc69e4a8e2d78ef1 (patch) | |
| tree | 6f4afdffe5dbaad7529be987b8c3259a07395031 /drivers/usb/misc/usblcd.c | |
| parent | c60f2b5c1defb6b1345968e1c65c2008c221d57d (diff) | |
| parent | c010b2f76c3032e48097a6eef291d8593d5d79a6 (diff) | |
Merge ../linux-2.6
Diffstat (limited to 'drivers/usb/misc/usblcd.c')
| -rw-r--r-- | drivers/usb/misc/usblcd.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c index 7f7021ee418..2db4228fbb0 100644 --- a/drivers/usb/misc/usblcd.c +++ b/drivers/usb/misc/usblcd.c @@ -146,7 +146,7 @@ static ssize_t lcd_read(struct file *file, char __user * buffer, size_t count, l return retval; } -static int lcd_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static long lcd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct usb_lcd *dev; u16 bcdDevice; @@ -158,12 +158,14 @@ static int lcd_ioctl(struct inode *inode, struct file *file, unsigned int cmd, u switch (cmd) { case IOCTL_GET_HARD_VERSION: + lock_kernel(); bcdDevice = le16_to_cpu((dev->udev)->descriptor.bcdDevice); sprintf(buf,"%1d%1d.%1d%1d", (bcdDevice & 0xF000)>>12, (bcdDevice & 0xF00)>>8, (bcdDevice & 0xF0)>>4, (bcdDevice & 0xF)); + unlock_kernel(); if (copy_to_user((void __user *)arg,buf,strlen(buf))!=0) return -EFAULT; break; @@ -272,7 +274,7 @@ static const struct file_operations lcd_fops = { .read = lcd_read, .write = lcd_write, .open = lcd_open, - .ioctl = lcd_ioctl, + .unlocked_ioctl = lcd_ioctl, .release = lcd_release, }; |