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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-05-10 10:52:04 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-19 18:56:32 +0200 |
| commit | 225baab0aeb6e999754a2d43e9c2b954ec9a75ab (patch) | |
| tree | 0eeda399f386c6377008a74f75ce378656799a21 | |
| parent | 80ad54a63af3a3e2eb701fbf30242a922c4fac47 (diff) | |
| download | lwn-225baab0aeb6e999754a2d43e9c2b954ec9a75ab.tar.gz lwn-225baab0aeb6e999754a2d43e9c2b954ec9a75ab.zip | |
slimbus: qcom: Fix IRQ check in qcom_slim_probe
platform_get_irq() returns non-zero IRQ number on success,
negative error number on failure.
And the doc of platform_get_irq() provides a usage example:
int irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
Fix the check of return value to catch errors correctly.
Fixes: ad7fcbc308b0 ("slimbus: qcom: Add Qualcomm Slimbus controller driver")
Cc: stable@vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220510095205.337-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/slimbus/qcom-ctrl.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/slimbus/qcom-ctrl.c b/drivers/slimbus/qcom-ctrl.c index f04b961b96cd..ec58091fc948 100644 --- a/drivers/slimbus/qcom-ctrl.c +++ b/drivers/slimbus/qcom-ctrl.c @@ -510,9 +510,9 @@ static int qcom_slim_probe(struct platform_device *pdev) } ctrl->irq = platform_get_irq(pdev, 0); - if (!ctrl->irq) { + if (ctrl->irq < 0) { dev_err(&pdev->dev, "no slimbus IRQ\n"); - return -ENODEV; + return ctrl->irq; } sctrl = &ctrl->ctrl; |