[ARM] 4237/2: oprofile: Always allow backtraces on ARM

Always allow backtrace when using oprofile on ARM, even if a PMU
isn't present.

Signed-off-by: Richard Purdie <[e-mail]>
Signed-off-by: Russell King <[e-mail]>

arch/arm/oprofile/common.c

···
 	struct op_arm_model_spec *spec = NULL;
 	int ret = -ENODEV;
 
+	ops->backtrace = arm_backtrace;
+
 #ifdef CONFIG_CPU_XSCALE
 	spec = &op_xscale_spec;
 #endif
···
 		ops->start = op_arm_start;
 		ops->stop = op_arm_stop;
 		ops->cpu_type = op_arm_model->name;
-		ops->backtrace = arm_backtrace;
 		printk(KERN_INFO "oprofile: using %s\n", spec->name);
 	}