serial: earlycon: Skip parse_options() if empty string

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Earlycon param strings of the form
   earlycon=<name>
are rejected from parse_options() with an error (which, in turn,
results in a NULL argument for the setup() method options parameter).

Only pass non-empty string to parse_options(); this will enable
handling actual parse errors differently than expected and allow
formats.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Peter Hurley 2015-03-09 16:27:19 -04:00 • committed by Greg Kroah-Hartman

parent 526ebc3f56

commit 6084688038

1 changed files with 7 additions and 4 deletions

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drivers/tty/serial/earlycon.c

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