staging: ft1000: Fix kernel panic when use ioctl.
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 <marek.belisko@open-nandra.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Родитель
0ce72ea3b2
Коммит
91cda632eb
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@ -174,7 +174,7 @@ int ft1000_create_dev(struct ft1000_device *dev)
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}
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file = debugfs_create_file("device", S_IRUGO | S_IWUSR, dir,
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NULL, &ft1000fops);
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dev, &ft1000fops);
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if (IS_ERR(file)) {
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result = PTR_ERR(file);
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goto debug_file_fail;
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@ -398,7 +398,6 @@ static long ft1000_ioctl (struct file *file, unsigned int command,
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unsigned long argument)
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{
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void __user *argp = (void __user *)argument;
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struct net_device *dev;
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struct ft1000_info *info;
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struct ft1000_device *ft1000dev;
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int result=0;
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@ -428,9 +427,8 @@ static long ft1000_ioctl (struct file *file, unsigned int command,
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//DEBUG("FT1000:ft1000_ioctl:command = 0x%x argument = 0x%8x\n", command, (u32)argument);
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dev = file->private_data;
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info = netdev_priv(dev);
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ft1000dev = info->pFt1000Dev;
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info = file->private_data;
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ft1000dev = info->pFt1000Dev;
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cmd = _IOC_NR(command);
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//DEBUG("FT1000:ft1000_ioctl:cmd = 0x%x\n", cmd);
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