[PATCH v3] dumpcap: fix interface parameter check.

[Arshdeep Kaur <arshdeep.kaur@intel.com>]

Correction in handling 'IF' condition for -i parameter.
Fixes: cbb44143be74 ("app/dumpcap: add new packet capture application")
Signed-off-by: Arshdeep Kaur <arshdeep.kaur@intel.com>
---
 app/dumpcap/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/dumpcap/main.c b/app/dumpcap/main.c
index a6041d4ff4..8972c45a71 100644
--- a/app/dumpcap/main.c
+++ b/app/dumpcap/main.c
@@ -240,7 +240,7 @@ static void select_interface(const char *arg)
 {
 	uint16_t port;
 
-	if (strcmp(arg, "*"))
+	if (!strcmp(arg, "*"))
 		select_all_interfaces();
 	else if (rte_eth_dev_get_port_by_name(arg, &port) == 0)
 		add_interface(port, arg);
-- 
2.37.1