mmc: sh_mobile_sdhi: fix error return code in sh_mobile_sdhi_probe()

Fix to return a negative error code instead of 0 when we cannot get
IRQ source by platform_get_irq(), as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
1 file changed