[PATCH] libwine: Fix a regression in the return value check for mmap() on FreeBSD

[Damjan Jovanovic]

This fixes a regression from my previous patch in commit
55ba3648379d90642f174e74809b84130d6d1ddc, which was
checking for mmap() returning NULL instead of MAP_FAILED.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49225
Signed-off-by: Damjan Jovanovic <damjan.jov(a)gmail.com>
---
 libs/wine/mmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)