Release symbol on error-handling path of ips_get_i915_syms()

In ips_get_i915_syms(), the symbol i915_gpu_busy() is not released
when error occurs.
Signed-off-by: Nminskey guo <chaohong.guo@intel.com>
Acked-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

drivers/platform/x86/intel_ips.c

@@ -1390,7 +1390,7 @@ static bool ips_get_i915_syms(struct ips_driver *ips)
 	return true;
 
 out_put_busy:
-	symbol_put(i915_gpu_turbo_disable);
+	symbol_put(i915_gpu_busy);
 out_put_lower:
 	symbol_put(i915_gpu_lower);
 out_put_raise: