[PATCH] bpftool: optimize if statement code

[Liu Jing]

Since both conditions are used to check whether len is valid, we can combine the two conditions into a single if statement
Signed-off-by: Liu Jing <liujing@xxxxxxxxxxxxxxxxxxxx>
---
 tools/bpf/bpftool/feature.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/bpf/bpftool/feature.c b/tools/bpf/bpftool/feature.c
index 4dbc4fcdf473..0121e0fd6949 100644
--- a/tools/bpf/bpftool/feature.c
+++ b/tools/bpf/bpftool/feature.c
@@ -158,10 +158,9 @@ static int get_vendor_id(int ifindex)
 
 	len = read(fd, buf, sizeof(buf));
 	close(fd);
-	if (len < 0)
-		return -1;
-	if (len >= (ssize_t)sizeof(buf))
+	if ((len < 0) || (len >= (ssize_t)sizeof(buf)))
 		return -1;
+
 	buf[len] = '\0';
 
 	return strtol(buf, NULL, 0);
-- 
2.27.0