[Xen-devel] [PATCH 3/4] libxl_internal.c: Fix return handling for case of mmap failure

[Don Slutz <dslutz@xxxxxxxxxxx>]

mmap() returns MAP_FAILED not NULL.

Signed-off-by: Don Slutz <dslutz@xxxxxxxxxxx>
---
 tools/libxl/libxl_internal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/libxl/libxl_internal.c b/tools/libxl/libxl_internal.c
index 81f8985..b880c89 100644
--- a/tools/libxl/libxl_internal.c
+++ b/tools/libxl/libxl_internal.c
@@ -246,7 +246,7 @@ int libxl__file_reference_map(libxl__file_reference *f)
 
     ret = -1;
     data = mmap(NULL, st_buf.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
-    if (data == NULL)
+    if (data == MAP_FAILED)
         goto out;
 
     f->mapped = 1;
-- 
1.8.4


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