From: Miaoqian Lin <linmq006@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: linmq006@gmail.com, Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Felipe Balbi <balbi@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Shawn Guo <shawn.guo@linaro.org>,
linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v3] usb: dwc3: qcom: Fix NULL vs IS_ERR checking in dwc3_qcom_probe
Date: Wed, 22 Dec 2021 11:18:23 +0000 [thread overview]
Message-ID: <20211222111823.22887-1-linmq006@gmail.com> (raw)
Since the acpi_create_platform_device() function may return error
pointers, dwc3_qcom_create_urs_usb_platdev() function may return error
pointers too. Using IS_ERR_OR_NULL() to check the return value to fix this.
Fixes: c25c210f590e ("usb: dwc3: qcom: add URS Host support for sdm845 ACPI boot")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
Changes in v3:
- use if statement instead of ?: .
- Add space in Fixes info.
---
drivers/usb/dwc3/dwc3-qcom.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index 3cb01cdd02c2..b81a9e1c1315 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -769,9 +769,12 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
if (qcom->acpi_pdata->is_urs) {
qcom->urs_usb = dwc3_qcom_create_urs_usb_platdev(dev);
- if (!qcom->urs_usb) {
+ if (IS_ERR_OR_NULL(qcom->urs_usb)) {
dev_err(dev, "failed to create URS USB platdev\n");
- return -ENODEV;
+ if (!qcom->urs_usb)
+ return -ENODEV;
+ else
+ return PTR_ERR(qcom->urs_usb);
}
}
}
--
2.17.1
reply other threads:[~2021-12-22 11:18 UTC|newest]
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