x86/platform/intel-mid: Don't shadow error code of mp_map_gsi_to_irq()
When call mp_map_gsi_to_irq() and return its error code do not shadow it. Note that 0 is not an error. Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Link: http://lkml.kernel.org/r/20170119192425.189899-4-andriy.shevchenko@linux.intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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