From 38ee669d0057327459ee489bf5c5aec3887b645c Mon Sep 17 00:00:00 2001 From: Guido Kiener Date: Thu, 21 Nov 2019 13:38:22 +0800 Subject: [PATCH] usb: usbtmc: uninitialized symbol 'actual' in usbtmc_ioctl_clear [ 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 Fixes: dfee02ac4bce ("usb: usbtmc: Fix ioctl USBTMC_IOCTL_CLEAR") Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin Signed-off-by: Yang Yingliang --- drivers/usb/class/usbtmc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 3ce45c9e9d20..e6a7c86b70f2 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -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), -- GitLab