Commit b690020a authored Sep 25, 2018 by Guido Kiener Committed by Greg Kroah-Hartman Sep 28, 2018

usb: usbtmc: uninitialized symbol 'actual' in usbtmc_read



Fix uninitialized symbol 'actual' in function usbtmc_read.

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

Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Fixes: d7604ff0 ("usb: usbtmc: Optimize usbtmc_read")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 100f2cde

drivers/usb/class/usbtmc.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1370,6 +1370,7 @@ static ssize_t usbtmc_read(struct file filp, char __user buf,

		/* Loop until we have fetched everything we requested */
		remaining = count;
		actual = 0;

		/* Send bulk URB */
		retval = usb_bulk_msg(data->usb_dev,

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