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authorGuido Kiener <guido.kiener@rohde-schwarz.com>2018-09-25 01:30:31 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-28 15:12:08 +0200
commit9a83190300867fb024d53f47c31088e34188efc1 (patch)
tree3624fad2e64089cea009ede8bbf98ea7744e37e8 /drivers
parentusb: usbtmc: uninitialized symbol 'actual' in usbtmc_read (diff)
downloadlinux-9a83190300867fb024d53f47c31088e34188efc1.tar.xz
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usb: usbtmc: uninitialized symbol 'actual' in usbtmc_ioctl_clear
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/class/usbtmc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 9cb90603f71f..7184fa035434 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -1679,6 +1679,7 @@ usbtmc_clear_check_status:
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),