irqdomain: Drop pointless NULL check in virq_debug_show_one
data has been already derefenced unconditionally, so it's pointless to do a NULL pointer check on it afterwards. Drop it. [ tglx: Depersonify changelog. ] Signed-off-by: NRasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/20171112212904.28574-1-linux@rasmusvillemoes.dk
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