efi/printf: Handle null string input

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Print "(null)" for 's' if the input is a NULL pointer.

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-14-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

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Arvind Sankar 2020-05-18 15:07:05 -04:00 • committed by Ard Biesheuvel

parent dec6119952

commit fb031937a8

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drivers/firmware/efi/libstub/vsprintf.c

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