mfd: mc13xxx: Add check for mc13xxx_irq_request

stable inclusion
from stable-v5.10.110
commit 6fa8edfc9020eb13a9f5a10792cb85a9b5c5d34f
bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=6fa8edfc9020eb13a9f5a10792cb85a9b5c5d34f

--------------------------------

[ Upstream commit e477e51a ]

As the potential failure of the devm_request_threaded_irq(),
it should be better to check the return value of the
mc13xxx_irq_request() and return error if fails.

Fixes: 8e005935 ("mfd: Add mc13892 support to mc13xxx")
Signed-off-by: NJiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220224022331.3208275-1-jiasheng@iscas.ac.cnSigned-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYu Liao <liaoyu15@huawei.com>
Reviewed-by: NWei Li <liwei391@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/mfd/mc13xxx-core.c

@@ -323,8 +323,10 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode,
 		adc1 |= MC13783_ADC1_ATOX;
 
 	dev_dbg(mc13xxx->dev, "%s: request irq\n", __func__);
-	mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE,
+	ret = mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE,
 			mc13xxx_handler_adcdone, __func__, &adcdone_data);
+	if (ret)
+		goto out;
 
 	mc13xxx_reg_write(mc13xxx, MC13XXX_ADC0, adc0);
 	mc13xxx_reg_write(mc13xxx, MC13XXX_ADC1, adc1);