usb: gadget: udc: s3c2410: add IRQ check

[ Upstream commit ecff88e819e31081d41cd05bb199b9bd10e13e90 ]

The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to request_irq() (which takes
*unsigned* IRQ #), causing it to fail with -EINVAL, overriding an original
error code. Stop calling request_irq() with the invalid IRQ #s.

Fixes: 188db4435ac6 ("usb: gadget: s3c: use platform resources")
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Felipe Balbi <[email protected]>
Signed-off-by: Sergey Shtylyov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
1 file changed