From 49f1525546532139e0260ae19ab8012a2bfbd1f3 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Thu, 22 May 2008 22:48:48 +0100 Subject: [PATCH] USB: sisusb: Push down the BKL This is another case where the lock_kernel appears to be unneccessary and could be removed with a bit more investigative work Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/sisusbvga/sisusb.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index 33182f4c226..fbace41a7cb 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -2982,9 +2982,8 @@ sisusb_handle_command(struct sisusb_usb_data *sisusb, struct sisusb_command *y, return retval; } -static int -sisusb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) +static long +sisusb_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct sisusb_usb_data *sisusb; struct sisusb_info x; @@ -2995,6 +2994,7 @@ sisusb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) return -ENODEV; + lock_kernel(); mutex_lock(&sisusb->lock); /* Sanity check */ @@ -3053,6 +3053,7 @@ sisusb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, err_out: mutex_unlock(&sisusb->lock); + unlock_kernel(); return retval; } @@ -3066,9 +3067,7 @@ sisusb_compat_ioctl(struct file *f, unsigned int cmd, unsigned long arg) case SISUSB_GET_CONFIG_SIZE: case SISUSB_GET_CONFIG: case SISUSB_COMMAND: - lock_kernel(); - retval = sisusb_ioctl(f->f_path.dentry->d_inode, f, cmd, arg); - unlock_kernel(); + retval = sisusb_ioctl(f, cmd, arg); return retval; default: @@ -3087,7 +3086,7 @@ static const struct file_operations usb_sisusb_fops = { #ifdef SISUSB_NEW_CONFIG_COMPAT .compat_ioctl = sisusb_compat_ioctl, #endif - .ioctl = sisusb_ioctl + .unlocked_ioctl = sisusb_ioctl }; static struct usb_class_driver usb_sisusb_class = { -- 2.41.1