[PATCH iproute2-next] misc: ss.c: fix logical error in main function

[Anton Moryakov <ant.v.moryakov@gmail.com>]

In the line if (!dump_tcpdiag) { there was a logical error 
in checking the descriptor, which the static analyzer complained 
about (this action is always false)

fixed by replacing !dump_tcpdiag with !dump_fp

Reported-by: SVACE static analyzer
Signed-off-by: Anton Moryakov <ant.v.moryakov@gmail.com>
---
 misc/ss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/misc/ss.c b/misc/ss.c
index de02fccb..20d0766d 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -6228,7 +6228,7 @@ int main(int argc, char *argv[])
 		}
 		if (dump_tcpdiag[0] != '-') {
 			dump_fp = fopen(dump_tcpdiag, "w");
-			if (!dump_tcpdiag) {
+			if (!dump_fp) {
 				perror("fopen dump file");
 				exit(-1);
 			}
-- 
2.39.2