Commit c31f7134 authored Aug 02, 2019 by Nicholas Piggin Committed by Michael Ellerman Aug 30, 2019

powerpc/64s/exception: Fix DAR load for handle_page_fault error case



This buglet goes back to before the 64/32 arch merge, but it does not
seem to have had practical consequences because bad_page_fault does
not use the 2nd argument, but rather regs->dar/nip.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190802105709.27696-18-npiggin@gmail.com

parent b3fe3526

arch/powerpc/kernel/exceptions-64s.S

+1 −1

Original line number	Diff line number	Diff line
		@@ -2335,7 +2335,7 @@ handle_page_fault:
		bl save_nvgprs
		mr r5,r3
		addi r3,r1,STACK_FRAME_OVERHEAD
		lwz r4,_DAR(r1)
		ld r4,_DAR(r1)
		bl bad_page_fault
		b ret_from_except

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