tracing: Fix return value of ftrace_raw_output_prep()
authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>
Fri, 14 Nov 2014 16:42:06 +0000 (11:42 -0500)
committerSteven Rostedt <rostedt@goodmis.org>
Wed, 19 Nov 2014 20:25:48 +0000 (15:25 -0500)
commit8e2e095cbecad21078332cd83ae7e61ecfe12c59
tree2e90e347e207d85ec483c7aef8355ab89424843b
parentdba39448abb7340f86ae9b062f99d7acacb5d2d2
tracing: Fix return value of ftrace_raw_output_prep()

If the trace_seq of ftrace_raw_output_prep() is full this function
returns TRACE_TYPE_PARTIAL_LINE, otherwise it returns zero.

The problem is that TRACE_TYPE_PARTIAL_LINE happens to be zero!

The thing is, the caller of ftrace_raw_output_prep() expects a
success to be zero. Change that to expect it to be
TRACE_TYPE_HANDLED.

Link: http://lkml.kernel.org/r/20141114112522.GA2988@dhcp128.suse.cz
Reminded-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
include/trace/ftrace.h
kernel/trace/trace_output.c