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commit 186b8f1587c79c2fa04bfa392fdf084443e398c1 upstream.
Several callers to epapr_hypercall() pass an uninitialized stack
allocated array for the input arguments, presumably because they
have no input arguments. However this can produce errors like
this one
arch/powerpc/include/asm/epapr_hcalls.h:470:42: error: 'in' may be used uninitialized in this function [-Werror=maybe-uninitialized]
unsigned long register r3 asm("r3") = in[0];
~~^~~
Fix callers to this function to always zero-initialize the input
arguments array to prevent this.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: "A. Wilcox" <awilfox@adelielinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1a8ccbf263