From: Sergey Shtylyov s.shtylyov@omp.ru
stable inclusion from stable-5.10.65 commit ee029e3aa129572437c2d45082d5555d0ba7eb42 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 f9b459c2ba5edfe247e86b45ad5dea8da542f3ea ]
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: 15ef27756b23 ("i2c: hix5hd2: add i2c controller driver") Signed-off-by: Sergey Shtylyov s.shtylyov@omp.ru 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-hix5hd2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-hix5hd2.c b/drivers/i2c/busses/i2c-hix5hd2.c index c45f226c2b85..8993534bc510 100644 --- a/drivers/i2c/busses/i2c-hix5hd2.c +++ b/drivers/i2c/busses/i2c-hix5hd2.c @@ -413,7 +413,7 @@ static int hix5hd2_i2c_probe(struct platform_device *pdev) return PTR_ERR(priv->regs);
irq = platform_get_irq(pdev, 0); - if (irq <= 0) + if (irq < 0) return irq;
priv->clk = devm_clk_get(&pdev->dev, NULL);