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irq_of_parse_and_map() returns 0 when parsing or mapping an IRQ fails. The return value was passed to request_irq() without checking for failure. Check the return value before passing it to request_irq(). Signed-off-by: bui duc phuc <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Takashi Iwai <[email protected]>