perf annotate: Return errors from disasm_line__parse_powerpc()

In disasm_line__parse_powerpc() , return code from function
disasm_line__parse() is ignored. This will result in bad results
if the disasm_line__parse() fails to disasm the line. Use
the return code to fix this.

Signed-off-by: Athira Rajeev <[e-mail]>
Tested-By: Venkat Rao Bagalkote <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Namhyung Kim <[e-mail]>

tools/perf/util/disasm.c

···
 	char *tmp_raw_insn, *name_raw_insn = skip_spaces(line);
 	char *name = skip_spaces(name_raw_insn + RAW_BYTES);
 	int disasm = 0;
+	int ret = 0;
 
 	if (args->options->disassembler_used)
 		disasm = 1;
···
 		return -1;
 
 	if (disasm)
-		disasm_line__parse(name, namep, rawp);
+		ret = disasm_line__parse(name, namep, rawp);
 	else
 		*namep = "";
 
···
 	if (disasm)
 		dl->raw.raw_insn = be32_to_cpu(dl->raw.raw_insn);
 
-	return 0;
+	return ret;
 }
 
 static void annotation_line__init(struct annotation_line *al,