[PATCH 3/7] libfdt: Detected out-of-space with fdt_finish()
Simon Glass
sjg at chromium.org
Sat Aug 22 04:36:54 CEST 2020
At present the Python sequential-write interface can produce an error when
it calls fdt_finish(), since this needs to add a terminating tag to the
end of the struct section.
Fix this by automatically expanding the buffer if needed.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
scripts/dtc/pylibfdt/libfdt.i_shipped | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/scripts/dtc/pylibfdt/libfdt.i_shipped b/scripts/dtc/pylibfdt/libfdt.i_shipped
index fae0b27d7d0..1d69ad38e2e 100644
--- a/scripts/dtc/pylibfdt/libfdt.i_shipped
+++ b/scripts/dtc/pylibfdt/libfdt.i_shipped
@@ -786,7 +786,8 @@ class FdtSw(FdtRo):
Fdt object allowing access to the newly created device tree
"""
fdtsw = bytearray(self._fdt)
- check_err(fdt_finish(fdtsw))
+ while self.check_space(fdt_finish(fdtsw)):
+ fdtsw = bytearray(self._fdt)
return Fdt(fdtsw)
def check_space(self, val):
--
2.28.0.297.g1956fa8f8d-goog
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