forked from luck/tmp_suning_uos_patched
cpqphp_sysfs: switch to fixed_size_llseek()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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parent
914961aac0
commit
d2c40f789f
@ -167,26 +167,8 @@ static int open(struct inode *inode, struct file *file)
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static loff_t lseek(struct file *file, loff_t off, int whence)
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{
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struct ctrl_dbg *dbg;
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loff_t new = -1;
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mutex_lock(&cpqphp_mutex);
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dbg = file->private_data;
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switch (whence) {
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case 0:
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new = off;
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break;
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case 1:
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new = file->f_pos + off;
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break;
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}
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if (new < 0 || new > dbg->size) {
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mutex_unlock(&cpqphp_mutex);
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return -EINVAL;
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}
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mutex_unlock(&cpqphp_mutex);
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return (file->f_pos = new);
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struct ctrl_dbg *dbg = file->private_data;
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return fixed_size_llseek(file, off, whence, dbg->size);
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}
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static ssize_t read(struct file *file, char __user *buf,
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