Quoting Zhen Lei (2021-06-17 01:27:59)

When krealloc() fails to expand the memory and returns NULL, the original
memory is not released. In this case, the original "timings" scale should
be maintained.

Fixes: 888ca40e2843 ("clk: tegra: emc: Support multiple RAM codes")
Signed-off-by: Zhen Lei <redacted>
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Looks correct, but when does krealloc() return NULL? My read of the
kerneldoc is that it would return the original memory if the new
allocation "failed".

Reviewed-by: Stephen Boyd <sboyd@kernel.org>