compositor-fbdev: MAP_FAILED is not NULL
Fix the assumption that MAP_FAILED would be equal to NULL. It is not.
Set 'fb' explicitly to NULL on mmap failure so that comparisons to NULL
would produce the expected result.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
diff --git a/libweston/compositor-fbdev.c b/libweston/compositor-fbdev.c
index 6a30538..b1cc5dc 100644
--- a/libweston/compositor-fbdev.c
+++ b/libweston/compositor-fbdev.c
@@ -383,6 +383,7 @@
if (output->fb == MAP_FAILED) {
weston_log("Failed to mmap frame buffer: %s\n",
strerror(errno));
+ output->fb = NULL;
goto out_close;
}