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: cbe743f1333b ("usb: usbtmc: Fix ioctl USBTMC_IOCTL_ABORT_BULK_IN")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 7184fa035434fe0c524b3de52ce7b93cd7854ef2..4942122b2346d4804f2279fa8eb033296e1dd25b 100644 (file)
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -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),