ftrace: check for failure for all conversions

commit 3279ba37 upstream.

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.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

kernel/trace/ftrace.c

@@ -1110,15 +1110,10 @@ 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();
 }