mmc: sh_mobile_sdhi: fix error return code in sh_mobile_sdhi_probe()
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 <b8f9cab8be13de37b9588aedad10a20fc3a68783@trendmicro.com.cn>
Acked-by: Guennadi Liakhovetski <50875182aae23d69ca7738697596f18a14e926fc@gmx.de>
Signed-off-by: Chris Ball <6ca7faee6ca9a094b1ee341f11b840a5608a8746@laptop.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs