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

This fixes a regression from my previous patch in commit 55ba3648, which was checking for mmap() returning NULL instead of MAP_FAILED. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49225Signed-off-by: Damjan Jovanovic <damjan.jov@gmail.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

libwine: Fix a regression in the return value check for mmap() on FreeBSD.
e0138c4a · Damjan Jovanovic · Alexandre Julliard · 410934a7 · e0138c4a
Commit e0138c4a authored May 23, 2020 by Damjan Jovanovic Committed by Alexandre Julliard May 25, 2020
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mmap.c libs/wine/mmap.c +1 -1

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--- a/libs/wine/mmap.c
+++ b/libs/wine/mmap.c
@@ -215,7 +215,7 @@ void *wine_anon_mmap( void *start, size_t size, int prot, int flags )
        /* If available, this will attempt a fixed mapping in-kernel */
        flags |= MAP_TRYFIXED;
 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-        if ( start && mmap( start, size, prot, flags | MAP_FIXED | MAP_EXCL, get_fdzero(), 0 ) )
+        if ( start && mmap( start, size, prot, flags | MAP_FIXED | MAP_EXCL, get_fdzero(), 0 ) != MAP_FAILED )
            return start;
 #elif defined(__svr4__) || defined(__NetBSD__) || defined(__APPLE__)
        if ( try_mmap_fixed( start, size, prot, flags, get_fdzero(), 0 ) )