[PATCH 3/4] taskstats: reuse na in cgroupstats_user_cmd()

[Bradley Morgan]

cgroupstats_user_cmd() already pulled CGROUPSTATS_CMD_ATTR_FD into na to
check that the user sent it, then indexes info->attrs[] a second time to
read the value out of the very same attribute.  Read it from na.

No functional change.

Signed-off-by: Bradley Morgan <brads@xxxxxxxxxxxxxx>
---
 kernel/taskstats.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 35e9fa71526cc..9e11f92216861 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -417,7 +417,7 @@ static int cgroupstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
 	if (!na)
 		return -EINVAL;
 
-	fd = nla_get_u32(info->attrs[CGROUPSTATS_CMD_ATTR_FD]);
+	fd = nla_get_u32(na);
 	CLASS(fd, f)(fd);
 	if (fd_empty(f))
 		return -EBADF;
-- 
2.53.0