[PATCH] samples/bpf: Fix map fd argument on tracex4 example

[Namhyung Kim]

It only uses a map so the map_fd[1] should not be accessed.  Anyway the
print_old_objects didn't use the argument, Fix it.

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
 samples/bpf/tracex4_user.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/samples/bpf/tracex4_user.c b/samples/bpf/tracex4_user.c
index bc4a3bdea6ed..269d78e4ac52 100644
--- a/samples/bpf/tracex4_user.c
+++ b/samples/bpf/tracex4_user.c
@@ -37,8 +37,8 @@ static void print_old_objects(int fd)
 	key = write(1, "\e[1;1H\e[2J", 12); /* clear screen */
 
 	key = -1;
-	while (bpf_get_next_key(map_fd[0], &key, &next_key) == 0) {
-		bpf_lookup_elem(map_fd[0], &next_key, &v);
+	while (bpf_get_next_key(fd, &key, &next_key) == 0) {
+		bpf_lookup_elem(fd, &next_key, &v);
 		key = next_key;
 		if (val - v.val < 1000000000ll)
 			/* object was allocated more then 1 sec ago */
@@ -61,7 +61,7 @@ int main(int ac, char **argv)
 	}
 
 	for (i = 0; ; i++) {
-		print_old_objects(map_fd[1]);
+		print_old_objects(map_fd[0]);
 		sleep(1);
 	}
 
-- 
2.4.6

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