select() doesn't care about obvious user errors: if it's called without

any chance to come back (without being signaled), it now will.
For example, this is used by the sleep command (which now actually works
as it should :)).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12110 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/core/fs/vfs_select.cpp

@@ -1,7 +1,7 @@
-/* 
-** Copyright 2002-2004, Axel Dörfler, [email protected]. All rights reserved.
-** Distributed under the terms of the Haiku License.
-*/
+/*
+ * Copyright 2002-2005, Axel Dörfler, [email protected]. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
 
 
 #include <vfs.h>
@@ -130,11 +130,6 @@ common_select(int numfds, fd_set *readSet, fd_set *writeSet, fd_set *errorSet,
 			// array position is the same as the fd for select()
 	}
 
-	if (count < 1) {
-		count = B_BAD_VALUE;
-		goto err;
-	}
-
 	status = acquire_sem_etc(sync.sem, 1,
 		B_CAN_INTERRUPT | (timeout != -1 ? B_RELATIVE_TIMEOUT : 0), timeout);
 
@@ -478,6 +473,10 @@ _kern_poll(struct pollfd *fds, int numfds, bigtime_t timeout)
 }
 
 
+//	#pragma mark -
+//	User syscalls
+
+
 ssize_t
 _user_select(int numfds, fd_set *userReadSet, fd_set *userWriteSet, fd_set *userErrorSet,
 	bigtime_t timeout, const sigset_t *userSigMask)