Commit 2e32188a authored Sep 25, 2018 by Guido Kiener Committed by Greg Kroah-Hartman Sep 28, 2018

usb: usbtmc: uninitialized symbol 'actual' in usbtmc_ioctl_abort_bulk_in_tag



Fix uninitialized symbol 'actual' in function
usbtmc_ioctl_abort_bulk_in_tag().

When symbol 'actual' is not initialized and usb_bulk_msg() fails,
the subsequent kernel debug message shows invalid data.

Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Fixes: cbe743f1 ("usb: usbtmc: Fix ioctl USBTMC_IOCTL_ABORT_BULK_IN")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 9a831903

drivers/usb/class/usbtmc.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -321,6 +321,7 @@ usbtmc_abort_bulk_in_status:
		dev_dbg(dev, "Reading from bulk in EP\n");

		/* Data must be present. So use low timeout 300 ms */
		actual = 0;
		rv = usb_bulk_msg(data->usb_dev,
		usb_rcvbulkpipe(data->usb_dev,
		data->bulk_in),

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