[PATCH v2] selftests: nci: Correct pthread_create return value check

Lei Zhu <[email protected]> Wed, 29 Jul 2026 15:24:26 +0800
Newsgroups dev.linux.lists.oe-linux-nfc,org.kernel.vger.linux-kselftest,org.kernel.vger.netdev
Message-ID <[email protected]>
From: Lei Zhu <[email protected]>

The pthread_create() functions returns 0 on success and a positive value on
failure. Modify the return value check to correctly detect failure cases.

Fixes: 72696bd8a09d ("selftests: nci: Extract the start/stop discovery function")
Signed-off-by: Lei Zhu <[email protected]>
---
- Sashiko pointed out ignored the return value check in
  disconnect_tag. Fixed now.
---
 tools/testing/selftests/nci/nci_dev.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/nci/nci_dev.c b/tools/testing/selftests/nci/nci_dev.c
index 312f84ee0444..c053f5cf2745 100644
--- a/tools/testing/selftests/nci/nci_dev.c
+++ b/tools/testing/selftests/nci/nci_dev.c
@@ -438,7 +438,7 @@ FIXTURE_SETUP(NCI)
 	else
 		rc = pthread_create(&thread_t, NULL, virtual_dev_open,
 				    (void *)&self->virtual_nci_fd);
-	ASSERT_GT(rc, -1);
+	ASSERT_EQ(rc, 0);
 
 	rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
 			       NFC_CMD_DEV_UP, self->dev_idex);
@@ -509,7 +509,7 @@ FIXTURE_TEARDOWN(NCI)
 			rc = pthread_create(&thread_t, NULL, virtual_deinit,
 					    (void *)&self->virtual_nci_fd);
 
-		ASSERT_GT(rc, -1);
+		ASSERT_EQ(rc, 0);
 		rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
 				       NFC_CMD_DEV_DOWN, self->dev_idex);
 		EXPECT_EQ(rc, 0);
@@ -590,7 +590,7 @@ int start_polling(int dev_idx, int proto, int virtual_fd, int sd, int fid, int p
 
 	rc = pthread_create(&thread_t, NULL, virtual_poll_start,
 			    (void *)&virtual_fd);
-	if (rc < 0)
+	if (rc)
 		return rc;
 
 	rc = send_cmd_mt_nla(sd, fid, pid, NFC_CMD_START_POLL, 2, nla_start_poll_type,
@@ -610,7 +610,7 @@ int stop_polling(int dev_idx, int virtual_fd, int sd, int fid, int pid)
 
 	rc = pthread_create(&thread_t, NULL, virtual_poll_stop,
 			    (void *)&virtual_fd);
-	if (rc < 0)
+	if (rc)
 		return rc;
 
 	rc = send_cmd_with_idx(sd, fid, pid,
@@ -830,6 +830,8 @@ int disconnect_tag(int nfc_sock, int virtual_fd)
 
 	status = pthread_create(&thread_t, NULL, virtual_deactivate_proc,
 				(void *)&virtual_fd);
+	if (status)
+		return status;
 
 	close(nfc_sock);
 	pthread_join(thread_t, (void **)&status);
@@ -874,7 +876,7 @@ TEST_F(NCI, deinit)
 	else
 		rc = pthread_create(&thread_t, NULL, virtual_deinit,
 				    (void *)&self->virtual_nci_fd);
-	ASSERT_GT(rc, -1);
+	ASSERT_EQ(rc, 0);
 
 	rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
 			       NFC_CMD_DEV_DOWN, self->dev_idex);
-- 
2.25.1