From: Sergey Shtylyov s.shtylyov@omp.ru
stable inclusion from stable-5.10.65 commit 187705a4b1fa05e3368a95b0dbfa4469ec84a490 bugzilla: 182361 https://gitee.com/openeuler/kernel/issues/I4EH3U
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ 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@omp.ru Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@canonical.com Signed-off-by: Wolfram Sang wsa@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com
Signed-off-by: Chen Jun chenjun102@huawei.com --- 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 40fa9e4af5d1..05831848b7bf 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -1140,7 +1140,7 @@ 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;