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 <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
Sonicadvance1 · Aug 30, 2019 · c31f713 · c31f713
1 parent b3fe352
commit c31f713
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
@@ -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