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H A Dmtdparts.cc0ac3339475d3b6afc0cd901f20dd21d5fade17d Tue Jul 12 18:28:22 UTC 2016 Ladislav Michl <ladis@linux-mips.org> cmd: mtdparts: fix mtdparts variable presence confusion in mtdparts_init

A private buffer is used to read mtdparts variable from non-relocated
environment. A pointer to that buffer is returned unconditionally,
confusing later test for variable presence in the environment.
Fix it by returning NULL when getenv_f fails.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>