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usb: usbtmc: uninitialized symbol 'actual' in usbtmc_ioctl_clear

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[ Upstream commit 9a83190300867fb024d53f47c31088e34188efc1 ]

Fix uninitialized symbol 'actual' in function usbtmc_ioctl_clear.

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: dfee02ac4bce ("usb: usbtmc: Fix ioctl USBTMC_IOCTL_CLEAR")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Guido Kiener 2018-09-25 01:30:31 +02:00 • committed by Greg Kroah-Hartman
parent eb9b6c2038
commit 2e72489c82
1 changed files with 1 additions and 0 deletions

1
drivers/usb/class/usbtmc.c
View file

@ -1016,6 +1016,7 @@ static int usbtmc_ioctl_clear(struct usbtmc_device_data *data)
do {
dev_dbg(dev, "Reading from bulk in EP\n");
actual = 0;
rv = usb_bulk_msg(data->usb_dev,
usb_rcvbulkpipe(data->usb_dev,
data->bulk_in),