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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-10-11 17:11:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-06 12:43:21 +0100 |
| commit | d7030f05a84cf6ce9587dce5fab9774666597cd5 (patch) | |
| tree | d1632746120e960d3507be7af65b98016a427403 | |
| parent | 4df728651b8a99693c69962d8e5a5b9e5a3bbcc7 (diff) | |
| download | linux-stable-d7030f05a84cf6ce9587dce5fab9774666597cd5.tar.gz linux-stable-d7030f05a84cf6ce9587dce5fab9774666597cd5.tar.bz2 linux-stable-d7030f05a84cf6ce9587dce5fab9774666597cd5.zip | |
USB: legousbtower: fix a signedness bug in tower_probe()
[ 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@oracle.com>
Acked-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191011141115.GA4521@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/usb/misc/legousbtower.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index 378a565ec989..a1ed6be87471 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c @@ -881,7 +881,7 @@ 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); |