# [PATCH 3/6] compat/poll/poll.c: Fix a sparse warning

1 messages from 2013-04-27 to 2013-04-27. Participants: Ramsay Jones.
Thread: https://gitlist.dev/t/33646

## Ramsay Jones, 2013-04-27 19:17

Subject: [PATCH 3/6] compat/poll/poll.c: Fix a sparse warning
Message-ID: <517C243A.20702@ramsay1.demon.co.uk>
URL: https://gitlist.dev/e/517C243A.20702%40ramsay1.demon.co.uk

```

Sparse issues an 'Using plain integer as NULL pointer' warning when
passing the constant '0' as the second parameter in the call to the
WSAEventSelect() function. The function parameter has a pointer type
(WSAEVENT, aka HANDLE, aka void *) so that, in order to suppress the
warning, we simply pass NULL for that parameter in the function call
expression.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
---
 compat/poll/poll.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compat/poll/poll.c b/compat/poll/poll.c
index 7d226ec..4410310 100644
--- a/compat/poll/poll.c
+++ b/compat/poll/poll.c
@@ -576,7 +576,7 @@ restart:
 	{
 	  /* It's a socket.  */
 	  WSAEnumNetworkEvents ((SOCKET) h, NULL, &ev);
-	  WSAEventSelect ((SOCKET) h, 0, 0);
+	  WSAEventSelect ((SOCKET) h, NULL, 0);
 
 	  /* If we're lucky, WSAEnumNetworkEvents already provided a way
 	     to distinguish FD_READ and FD_ACCEPT; this saves a recv later.  */
-- 
1.8.2

```