perf tools: Get rid of dso__needs_decompress() call in read_object_code()

There's no need to call dso__needs_decompress() twice in the function.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180817094813.15086-2-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/code-reading.c

@@ -232,6 +232,7 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode,
 	u64 objdump_addr;
 	const char *objdump_name;
 	char decomp_name[KMOD_DECOMP_LEN];
+	bool decomp = false;
 	int ret;
 
 	pr_debug("Reading object code for memory address: %#"PRIx64"\n", addr);
@@ -305,6 +306,7 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode,
 			return -1;
 		}
 
+		decomp = true;
 		objdump_name = decomp_name;
 	}
 
@@ -312,7 +314,7 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode,
 	objdump_addr = map__rip_2objdump(al.map, al.addr);
 	ret = read_via_objdump(objdump_name, objdump_addr, buf2, len);
 
-	if (dso__needs_decompress(al.map->dso))
+	if (decomp)
 		unlink(objdump_name);
 
 	if (ret > 0) {