[PATCH] selinux: simplify sel_read_bool
Simplify sel_read_bool to use the simple_read_from_buffer helper, like the other selinuxfs functions. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -710,7 +710,6 @@ static ssize_t sel_read_bool(struct file *filep, char __user *buf,
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{
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char *page = NULL;
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ssize_t length;
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ssize_t end;
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ssize_t ret;
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int cur_enforcing;
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struct inode *inode;
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@ -741,24 +740,7 @@ static ssize_t sel_read_bool(struct file *filep, char __user *buf,
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length = scnprintf(page, PAGE_SIZE, "%d %d", cur_enforcing,
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bool_pending_values[inode->i_ino - BOOL_INO_OFFSET]);
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if (length < 0) {
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ret = length;
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goto out;
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}
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if (*ppos >= length) {
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ret = 0;
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goto out;
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}
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if (count + *ppos > length)
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count = length - *ppos;
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end = count + *ppos;
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if (copy_to_user(buf, (char *) page + *ppos, count)) {
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ret = -EFAULT;
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goto out;
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}
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*ppos = end;
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ret = count;
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ret = simple_read_from_buffer(buf, count, ppos, page, length);
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out:
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mutex_unlock(&sel_mutex);
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if (page)
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