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From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
Date: Thu, 14 Jun 2012 15:23:51 +0000 (UTC)
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Subject: svn commit: r237071 - head/sys/sys
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Author: pjd
Date: Thu Jun 14 15:23:51 2012
New Revision: 237071
URL: http://svn.freebsd.org/changeset/base/237071

Log:
  Explicitly check if 'fd' is less than 0 instead of using cast-to-unsinged hack.
  
  MFC after:	1 month

Modified:
  head/sys/sys/filedesc.h

Modified: head/sys/sys/filedesc.h
==============================================================================
--- head/sys/sys/filedesc.h	Thu Jun 14 15:21:57 2012	(r237070)
+++ head/sys/sys/filedesc.h	Thu Jun 14 15:23:51 2012	(r237071)
@@ -141,7 +141,7 @@ static __inline struct file *
 fget_locked(struct filedesc *fdp, int fd)
 {
 
-	return ((unsigned int)fd >= fdp->fd_nfiles ? NULL : fdp->fd_ofiles[fd]);
+	return (fd < 0 || fd >= fdp->fd_nfiles ? NULL : fdp->fd_ofiles[fd]);
 }
 
 #endif /* _KERNEL */