Commit 3279ba37 authored Oct 07, 2009 by Steven Rostedt Committed by Steven Rostedt Oct 07, 2009

ftrace: check for failure for all conversions



Due to legacy code from back when the dynamic tracer used a daemon,
only core kernel code was checking for failures. This is no longer
the case. We must check for failures any time we perform text modifications.

Cc: stable@kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

parent e7247a15

kernel/trace/ftrace.c

+3 −8

Original line number	Diff line number	Diff line
		@@ -1074,15 +1074,10 @@ static void ftrace_replace_code(int enable)
		failed = __ftrace_replace_code(rec, enable);
		if (failed) {
		rec->flags \|= FTRACE_FL_FAILED;
		if ((system_state == SYSTEM_BOOTING) \|\|
		!core_kernel_text(rec->ip)) {
		ftrace_free_rec(rec);
		} else {
		ftrace_bug(failed, rec->ip);
		/* Stop processing */
		return;
		}
		}
		} while_for_each_ftrace_rec();
		}