Add a few new error codes to report the failure conditions we might
encounter in the overlay application code:
- FDT_ERR_BADFIXUP, when an overlay fixup property is not properly
formatted.
- FDT_ERR_BADOVERLAY, when an overlay cannot be parsed, even though its
structure is correct
- FDT_ERR_NOPHANDLES, when we ran out of available phandles and we
cannot use a new phandle without either using an invalid one (-1 or
0), or one already used.
Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
---
libfdt/fdt_strerror.c | 3 +++
libfdt/libfdt.h | 15 ++++++++++++++-
2 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/libfdt/fdt_strerror.c b/libfdt/fdt_strerror.c
index e6c3ceee8c58..70a36291466f 100644
--- a/libfdt/fdt_strerror.c
+++ b/libfdt/fdt_strerror.c
@@ -76,6 +76,9 @@ static struct fdt_errtabent fdt_errtable[] = {
FDT_ERRTABENT(FDT_ERR_BADVERSION),
FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
+ FDT_ERRTABENT(FDT_ERR_BADFIXUP),
+ FDT_ERRTABENT(FDT_ERR_BADOVERLAY),
+ FDT_ERRTABENT(FDT_ERR_NOPHANDLES),
};
#define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0]))
diff --git a/libfdt/libfdt.h b/libfdt/libfdt.h
index ecb11fc9e985..81907815fda1 100644
--- a/libfdt/libfdt.h
+++ b/libfdt/libfdt.h
@@ -126,7 +126,20 @@
* value. For example: a property expected to contain a string list
* is not NUL-terminated within the length of its value. */
-#define FDT_ERR_MAX 15
+#define FDT_ERR_BADFIXUP 16
+ /* FDT_ERR_BADFIXUP: One of the device tree overlay fixup is
+ * not formatted properly. */
+
+#define FDT_ERR_BADOVERLAY 17
+ /* FDT_ERR_BADOVERLAY: The device tree overlay, while
+ * correctly structured, cannot be applied due to some
+ * unexpected or missing value, property or node. */
+
+#define FDT_ERR_NOPHANDLES 18
+ /* FDT_ERR_NOPHANDLES: The device tree doesn't have any
+ * phandle available anymore without causing an overflow */
+
+#define FDT_ERR_MAX 18
/**********************************************************************/
/* Low-level functions (you probably don't need these) */
--
2.9.3
--
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