[PATCH 4.14 147/218] rpmsg: qcom_smd: Fix irq_of_parse_and_map() return value

[Greg Kroah-Hartman]

From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>

[ 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@xxxxxxxxxx>
Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220422105326.78713-1-krzysztof.kozlowski@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 72d02bfeda9e..781df7a17b56 100644
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -1299,7 +1299,7 @@ static int qcom_smd_parse_edge(struct device *dev,
 		edge->name = node->name;
 
 	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