From: Marek Belisko <[email protected]> During ioctl testing was observed kernel panic beuase file->private_data pointer was not correctly set when debugfs file was created. Add correct pointer setup.
Signed-off-by: Marek Belisko <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/staging/ft1000/ft1000-usb/ft1000_debug.c | 8 +++----- 1 files changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c b/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c index e398092..149ba59 100644 --- a/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c +++ b/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c @@ -174,7 +174,7 @@ int ft1000_create_dev(struct ft1000_device *dev) } file = debugfs_create_file("device", S_IRUGO | S_IWUSR, dir, - NULL, &ft1000fops); + dev, &ft1000fops); if (IS_ERR(file)) { result = PTR_ERR(file); goto debug_file_fail; @@ -398,7 +398,6 @@ static long ft1000_ioctl (struct file *file, unsigned int command, unsigned long argument) { void __user *argp = (void __user *)argument; - struct net_device *dev; struct ft1000_info *info; struct ft1000_device *ft1000dev; int result=0; @@ -428,9 +427,8 @@ static long ft1000_ioctl (struct file *file, unsigned int command, //DEBUG("FT1000:ft1000_ioctl:command = 0x%x argument = 0x%8x\n", command, (u32)argument); - dev = file->private_data; - info = netdev_priv(dev); - ft1000dev = info->pFt1000Dev; + info = file->private_data; + ft1000dev = info->pFt1000Dev; cmd = _IOC_NR(command); //DEBUG("FT1000:ft1000_ioctl:cmd = 0x%x\n", cmd); -- 1.7.3.2 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
