From 3e8d95d95eaf4b332f6e1862ffbaa80c24780767 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 4 Jan 2010 16:19:55 +0000 Subject: tosh: Use non bkl ioctl We wrap the smm calls and other bits with the BKL push down as a precaution but they can probably go Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/char/toshiba.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/char/toshiba.c b/drivers/char/toshiba.c index 663cd15d7c7..f8bc79f6de3 100644 --- a/drivers/char/toshiba.c +++ b/drivers/char/toshiba.c @@ -68,7 +68,7 @@ #include #include #include - +#include #include #define TOSH_MINOR_DEV 181 @@ -88,13 +88,13 @@ static int tosh_date; static int tosh_sci; static int tosh_fan; -static int tosh_ioctl(struct inode *, struct file *, unsigned int, +static long tosh_ioctl(struct file *, unsigned int, unsigned long); static const struct file_operations tosh_fops = { .owner = THIS_MODULE, - .ioctl = tosh_ioctl, + .unlocked_ioctl = tosh_ioctl, }; static struct miscdevice tosh_device = { @@ -252,8 +252,7 @@ int tosh_smm(SMMRegisters *regs) EXPORT_SYMBOL(tosh_smm); -static int tosh_ioctl(struct inode *ip, struct file *fp, unsigned int cmd, - unsigned long arg) +static long tosh_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) { SMMRegisters regs; SMMRegisters __user *argp = (SMMRegisters __user *)arg; @@ -275,13 +274,16 @@ static int tosh_ioctl(struct inode *ip, struct file *fp, unsigned int cmd, return -EINVAL; /* do we need to emulate the fan ? */ + lock_kernel(); if (tosh_fan==1) { if (((ax==0xf300) || (ax==0xf400)) && (bx==0x0004)) { err = tosh_emulate_fan(®s); + unlock_kernel(); break; } } err = tosh_smm(®s); + unlock_kernel(); break; default: return -EINVAL; -- cgit v1.2.3