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| author | Frank Rowand <[email protected]> | 2021-04-08 20:45:08 +0000 |
|---|---|---|
| committer | Rob Herring <[email protected]> | 2021-04-08 21:38:47 +0000 |
| commit | 48d499bd89191b359a6dbe44d32107e3021571c2 (patch) | |
| tree | 2fa58efa7eeb0a6367f6efbcd4b5f4438a1fdfc0 /drivers/gpu/drm/amd/amdgpu/amdgpu_test.c | |
| parent | of: properly check for error returned by fdt_get_name() (diff) | |
| download | kernel-48d499bd89191b359a6dbe44d32107e3021571c2.tar.gz kernel-48d499bd89191b359a6dbe44d32107e3021571c2.zip | |
of: unittest: overlay: ensure proper alignment of copied FDT
The Devicetree standard specifies an 8 byte alignment of the FDT.
Code in libfdt expects this alignment for an FDT image in memory.
kmemdup() returns 4 byte alignment on openrisc. Replace kmemdup()
with kmalloc(), align pointer, memcpy() to get proper alignment.
The 4 byte alignment exposed a related bug which triggered a crash
on openrisc with:
commit 79edff12060f ("scripts/dtc: Update to upstream version v1.6.0-51-g183df9e9c2b9")
as reported in:
https://lore.kernel.org/lkml/[email protected]/
Reported-by: Guenter Roeck <[email protected]>
Signed-off-by: Frank Rowand <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Herring <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_test.c')
0 files changed, 0 insertions, 0 deletions