Commit bb8651e5 authored Sep 05, 2017 by Joakim Tjernlund Committed by Scott Wood Jan 20, 2018

powerpc/fsl_pci: Correct fsl_pci_mcheck_exception



get_user() had it args reversed causing NIP to be NULL:ed instead
of fixing up the PCI access.

Note: This still hangs my P1020 Freescale CPU hard, but at least
I get a NIP now.

Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Scott Wood <oss@buserror.net>

parent f2ac428e

arch/powerpc/sysdev/fsl_pci.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1070,7 +1070,7 @@ int fsl_pci_mcheck_exception(struct pt_regs *regs)
		if (is_in_pci_mem_space(addr)) {
		if (user_mode(regs)) {
		pagefault_disable();
		ret = get_user(regs->nip, &inst);
		ret = get_user(inst, (__u32 __user *)regs->nip);
		pagefault_enable();
		} else {
		ret = probe_kernel_address((void *)regs->nip, inst);

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