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USB: usbsevseg: drop redundant device reference

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Driver core holds a reference to the USB interface and its parent USB
device while the interface is bound to a driver and there is no need to
take additional references unless the structures are needed after
disconnect.

Drop the redundant device reference to reduce cargo culting, make it
easier to spot drivers where an extra reference is needed, and reduce
the risk of memory leaks when drivers fail to release it.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260305111511.18386-6-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold
2026-03-05 12:15:11 +01:00
committed by Greg Kroah-Hartman
parent 58221c728d
commit 9b91cafe80
1 changed files with 1 additions and 2 deletions
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3
drivers/usb/misc/usbsevseg.c
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@@ -312,7 +312,7 @@ static int sevseg_probe(struct usb_interface *interface,
if (!mydev)
goto error_mem;
mydev->udev = usb_get_dev(udev);
mydev->udev = udev;
mydev->intf = interface;
usb_set_intfdata(interface, mydev);
@@ -338,7 +338,6 @@ static void sevseg_disconnect(struct usb_interface *interface)
mydev = usb_get_intfdata(interface);
usb_set_intfdata(interface, NULL);
usb_put_dev(mydev->udev);
kfree(mydev);
dev_info(&interface->dev, "USB 7 Segment now disconnected\n");
}