mvebu/uDPU: remove $? usage
authorRosen Penev <rosenp@gmail.com>
Sat, 20 Aug 2022 21:02:58 +0000 (14:02 -0700)
committerHauke Mehrtens <hauke@hauke-m.de>
Fri, 3 Feb 2023 10:34:20 +0000 (11:34 +0100)
shellcheck warns against it with SC2086. It also hides a bug that
shellcheck marks with SC2015. Fixed those with explicit if/else.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

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