Rasmus Villemoes 5eff88dd6b
efi: cper: fix scnprintf() use in cper_mem_err_location() ...
The last two if-clauses fail to update n, so whatever they might have
written at &msg[n] would be cut off by the final nul-termination.
That nul-termination is redundant; scnprintf(), just like snprintf(),
guarantees a nul-terminated output buffer, provided the buffer size is
positive.
And there's no need to discount one byte from the initial buffer;
vsnprintf() expects to be given the full buffer size - it's not going
to write the nul-terminator one beyond the given (buffer, size) pair.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk >
Signed-off-by: Ard Biesheuvel <ardb@kernel.org >
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5eff88dd6b