[PATCH] tools: Fix handle leak in mmap_fdt function

[ant.v.moryakov@gmail.com]

From: Maks Mishin <maks.mishinFZ@gmail.com>

The handle 'ptr' is created at fit_common.c:91 by calling 
function 'mmap' and lost at fit_common.c:127: 
Added call of free for `ptr` if ptr != MAP_FAILED.

Trigger was found by the Svace static analyzer.

Signed-off-by: Maks Mishin <maks.mishinFZ@gmail.com>
---
 tools/fit_common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/fit_common.c b/tools/fit_common.c
index d1cde16c1c..135e105929 100644
--- a/tools/fit_common.c
+++ b/tools/fit_common.c
@@ -123,6 +123,7 @@ err:
 		close(fd);
 	if (delete_on_error)
 		unlink(fname);
+	free(ptr);
 
 	return -1;
 }
-- 
2.34.1