Commit 3ba45b7e authored Oct 12, 2017 by Michael Ellerman

powerpc/watchdog: regs can't be null in soft_nmi_interrupt()

soft_nmi_interrupt() is called directly from the asm exception
handling code, which passes regs as a pointer to the stack. So regs
can't be NULL, it may be full of junk, but that's a separate problem.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent d8fa82e0

arch/powerpc/kernel/watchdog.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -257,10 +257,7 @@ void soft_nmi_interrupt(struct pt_regs *regs)
		pr_emerg("CPU %d self-detected hard LOCKUP\n", cpu);
		print_modules();
		print_irqtrace_events(current);
		if (regs)
		show_regs(regs);
		else
		dump_stack();

		wd_smp_unlock(&flags);