From: Sergey Shtylyov <s.shtylyov@xxxxxxxxxxxx>
[ Upstream commit bb6129c32867baa7988f7fd2066cf18ed662d240 ]
The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to devm_request_irq() (which
takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding
an original error code. Stop calling devm_request_irq() with invalid
IRQ #s.
Fixes: 5faf6e1f58b4 ("i2c: emev2: add driver")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxxxxxxxx>
Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/i2c/busses/i2c-emev2.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-emev2.c b/drivers/i2c/busses/i2c-emev2.c
index dd97e5d9f49a..74f0d5f2dc30 100644
--- a/drivers/i2c/busses/i2c-emev2.c
+++ b/drivers/i2c/busses/i2c-emev2.c
@@ -400,7 +400,10 @@ static int em_i2c_probe(struct platform_device *pdev)
em_i2c_reset(&priv->adap);
- priv->irq = platform_get_irq(pdev, 0);
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0)
+ goto err_clk;
+ priv->irq = ret;
ret = devm_request_irq(&pdev->dev, priv->irq, em_i2c_irq_handler, 0,
"em_i2c", priv);
if (ret)
--
2.30.2
