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[ Upstream commite796cc6a3a] The platform_get_irq_byname() function returns negative if an error occurs. zero or positive number on success. platform_get_irq_byname() error checking for zero is not correct. Fixes:6d6ce40f63("phy: cpcap-usb: Add CPCAP PMIC USB support") Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>