From: Dan Carpenter <dan.carpenter@linaro.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH] usb: gadget: udc: fix NULL dereference in remove()
Date: Thu, 25 May 2023 18:38:37 +0300 [thread overview]
Message-ID: <ZG+A/dNpFWAlCChk@kili> (raw)
The "udc" pointer was never set in the probe() function so it will
lead to a NULL dereference in udc_pci_remove() when we do:
usb_del_gadget_udc(&udc->gadget);
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
drivers/usb/gadget/udc/amd5536udc_pci.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/gadget/udc/amd5536udc_pci.c b/drivers/usb/gadget/udc/amd5536udc_pci.c
index c80f9bd51b75..a36913ae31f9 100644
--- a/drivers/usb/gadget/udc/amd5536udc_pci.c
+++ b/drivers/usb/gadget/udc/amd5536udc_pci.c
@@ -170,6 +170,9 @@ static int udc_pci_probe(
retval = -ENODEV;
goto err_probe;
}
+
+ udc = dev;
+
return 0;
err_probe:
--
2.34.1
reply other threads:[~2023-05-25 15:38 UTC|newest]
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