[PATCH 4.9 114/167] rpmsg: qcom_smd: Fix irq_of_parse_and_map() return value

Greg Kroah-Hartman
2022-06-13T10:26:51Z

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

[ Upstream commit 1a358d35066487d228a68303d808bc4721c6b1b9 ]

The irq_of_parse_and_map() returns 0 on failure, not a negative ERRNO.

Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220422105326.78713-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/rpmsg/qcom_smd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c
index 312cb7fec5b0..5e67e42e6461 100644
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -1258,7 +1258,7 @@ static int qcom_smd_parse_edge(struct device *dev,
}

irq = irq_of_parse_and_map(node, 0);
- if (irq < 0) {
+ if (!irq) {
dev_err(dev, "required smd interrupt missing\n");
return -EINVAL;
}
--
2.35.1