Re: [PATCH] selftests: nci: use int replace unsigned int

Should not use unsigned expression compared with zero

Signed-off-by: Xiang wangx <redacted>
---
 tools/testing/selftests/nci/nci_dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/nci/nci_dev.c b/tools/testing/selftests/nci/nci_dev.c
index e1bf55dabdf6..162c41e9bcae 100644
--- a/tools/testing/selftests/nci/nci_dev.c
+++ b/tools/testing/selftests/nci/nci_dev.c

@@ -746,7 +746,7 @@ int read_write_nci_cmd(int nfc_sock, int virtual_fd, const __u8 *cmd, __u32 cmd_
                       const __u8 *rsp, __u32 rsp_len)
 {
        char buf[256];
-       unsigned int len;
+       int len;

        send(nfc_sock, &cmd[3], cmd_len - 3, 0);
        len = read(virtual_fd, buf, cmd_len);
--

2.20.1