提交 68bdcf28 编写于 作者: S Stephen Smalley 提交者: Linus Torvalds

[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: NStephen Smalley <sds@tycho.nsa.gov>
Acked-by: NJames Morris <jmorris@namei.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 bb003079
......@@ -710,7 +710,6 @@ static ssize_t sel_read_bool(struct file *filep, char __user *buf,
{
char *page = NULL;
ssize_t length;
ssize_t end;
ssize_t ret;
int cur_enforcing;
struct inode *inode;
......@@ -741,24 +740,7 @@ static ssize_t sel_read_bool(struct file *filep, char __user *buf,
length = scnprintf(page, PAGE_SIZE, "%d %d", cur_enforcing,
bool_pending_values[inode->i_ino - BOOL_INO_OFFSET]);
if (length < 0) {
ret = length;
goto out;
}
if (*ppos >= length) {
ret = 0;
goto out;
}
if (count + *ppos > length)
count = length - *ppos;
end = count + *ppos;
if (copy_to_user(buf, (char *) page + *ppos, count)) {
ret = -EFAULT;
goto out;
}
*ppos = end;
ret = count;
ret = simple_read_from_buffer(buf, count, ppos, page, length);
out:
mutex_unlock(&sel_mutex);
if (page)
......
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