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Subject[PATCH 1/1] rtc: snvs: fix an incorrect check of return value
Date
Function devm_regmap_init_mmio() returns an ERR_PTR on error. However,
in function snvs_rtc_probe() its return value is checked against NULL.
This patch fixes it by checking the return value with IS_ERR().

Signed-off-by: Pan Bian <bianpan2016@163.com>
---
drivers/rtc/rtc-snvs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c
index d51b07d..d8ef9e0 100644
--- a/drivers/rtc/rtc-snvs.c
+++ b/drivers/rtc/rtc-snvs.c
@@ -258,7 +258,7 @@ static int snvs_rtc_probe(struct platform_device *pdev)
of_property_read_u32(pdev->dev.of_node, "offset", &data->offset);
}

- if (!data->regmap) {
+ if (IS_ERR(data->regmap)) {
dev_err(&pdev->dev, "Can't find snvs syscon\n");
return -ENODEV;
}
--
1.9.1

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