4.9-stable review patch. If anyone has any objections, please let me know.
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From: Pan Bian bianpan2016@163.com
[ Upstream commit 758929005f06f954b7e1c87a1c9fdb44157b228f ]
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 Signed-off-by: Alexandre Belloni alexandre.belloni@free-electrons.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/rtc/rtc-snvs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/rtc/rtc-snvs.c +++ b/drivers/rtc/rtc-snvs.c @@ -257,7 +257,7 @@ static int snvs_rtc_probe(struct platfor 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; }