From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
[ Upstream commit fd47a417e75e2506eb3672ae569b1c87e3774155 ]
The problem is that sizeof() is unsigned long so negative error codes
are type promoted to high positive values and the condition becomes
false.
Fixes: 1d427be4a39d ("USB: legousbtower: fix slab info leak at probe")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Johan Hovold <johan@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20191011141115.GA4521@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/usb/misc/legousbtower.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index 32b41eb07f00e..8350ecfbcf21a 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -910,7 +910,7 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device
get_version_reply,
sizeof(*get_version_reply),
1000);
- if (result < sizeof(*get_version_reply)) {
+ if (result != sizeof(*get_version_reply)) {
if (result >= 0)
result = -EIO;
dev_err(idev, "get version request failed: %d\n", result);
--
2.20.1
