[PATCH 4.9 074/175] i2c: s3c2410: fix IRQ check

[Greg Kroah-Hartman]

From: Sergey Shtylyov <s.shtylyov@xxxxxx>

[ Upstream commit d6840a5e370b7ea4fde16ce2caf431bcc87f9a75 ]

Iff platform_get_irq() returns 0, the driver's probe() method will return 0
early (as if the method's call was successful).  Let's consider IRQ0 valid
for simplicity -- devm_request_irq() can always override that decision...

Fixes: e0d1ec97853f ("i2c-s3c2410: Change IRQ to be plain integer.")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/i2c/busses/i2c-s3c2410.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index acccdfb95420..3814c160ff17 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -1181,7 +1181,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
 	 */
 	if (!(i2c->quirks & QUIRK_POLL)) {
 		i2c->irq = ret = platform_get_irq(pdev, 0);
-		if (ret <= 0) {
+		if (ret < 0) {
 			dev_err(&pdev->dev, "cannot find IRQ\n");
 			clk_unprepare(i2c->clk);
 			return ret;
-- 
2.30.2