tracing: Use seq_buf_used() in seq_buf_to_user() instead of len
authorJerry Snitselaar <jsnitsel@redhat.com>
Mon, 16 Nov 2015 19:57:28 +0000 (12:57 -0700)
committerSteven Rostedt <rostedt@goodmis.org>
Wed, 23 Dec 2015 19:27:20 +0000 (14:27 -0500)
commitff078d8fc644722f7b163d79e8a03b00b9dc2385
tree54ed114e88d8d85899d3e9821d6ff4523b726291
parent27dff4e04199cf0ecf06239a26d0d225d3c046e9
tracing: Use seq_buf_used() in seq_buf_to_user() instead of len

commit 5ac48378414d ("tracing: Use trace_seq_used() and seq_buf_used()
instead of len") changed the tracing code to use trace_seq_used() and
seq_buf_used() instead of using the seq_buf len directly to avoid
overflow issues, but missed a spot in seq_buf_to_user() that makes use
of s->len.

Cleaned up the code a bit as well per suggestion of Steve Rostedt.

Link: http://lkml.kernel.org/r/1447703848-2951-1-git-send-email-jsnitsel@redhat.com
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
lib/seq_buf.c