Improve error handling in fit_common
Make the error handling common, and make sure the file is always closed
on error. Rename the parameter to be more description and add comments.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/fit_common.h b/tools/fit_common.h
index adf4404..adcee6d 100644
--- a/tools/fit_common.h
+++ b/tools/fit_common.h
@@ -16,7 +16,17 @@
int fit_check_image_types(uint8_t type);
-int mmap_fdt(char *cmdname, const char *fname, void **blobp,
- struct stat *sbuf, int useunlink);
+/**
+ * Map an FDT into memory, optionally increasing its size
+ *
+ * @cmdname: Tool name (for displaying with error messages)
+ * @fname: Filename containing FDT
+ * @blobp: Returns pointer to FDT blob
+ * @sbuf: File status information is stored here
+ * @delete_on_error: true to delete the file if we get an error
+ * @return 0 if OK, -1 on error.
+ */
+int mmap_fdt(const char *cmdname, const char *fname, void **blobp,
+ struct stat *sbuf, bool delete_on_error);
#endif /* _FIT_COMMON_H_ */