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Thomas Gleixner authored
The recent changes in the genirq core unearthed a bug in arch/um which called enable_irq() before the interrupt was set up. Warn and return instead of crashing the machine with a NULL pointer dereference. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Richard Weinberger <richard@nod.at>
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