NetCube-Systems-Austria/kumquat-buildroot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

package/libusb: fix maybe-uninitialized error

Browse Source 
Initialize active_config to an invalid value to avoid the following
compilation error:

os/linux_usbfs.c: In function ‘op_get_configuration’:
os/linux_usbfs.c:1452:12: error: ‘active_config’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
 1452 |  *config = (uint8_t)active_config;

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Tested-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Yegor Yefremov 2022-02-16 14:31:40 +01:00 committed by Yann E. MORIN
parent 8bb2db8cb1
commit d06737b27b
1 changed files with 37 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
package/libusb/0002-linux_usbfs-fix-maybe-uninitialized-error.patch Normal file
View File

@ -0,0 +1,37 @@
From bea5891591402f14940a607eafbdcd169ff8827f Mon Sep 17 00:00:00 2001
From: Yegor Yefremov <yegorslists@googlemail.com>
Date: Sun, 6 Feb 2022 07:12:14 +0100
Subject: [PATCH 2/2] linux_usbfs: fix maybe-uninitialized error
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Initialize active_config to an invalid value to avoid the following
compilation error:
os/linux_usbfs.c: In function ‘op_get_configuration’:
os/linux_usbfs.c:1452:12: error: ‘active_config’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
1452 | *config = (uint8_t)active_config;
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Upstream: https://github.com/libusb/libusb/pull/1062
---
libusb/os/linux_usbfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libusb/os/linux_usbfs.c b/libusb/os/linux_usbfs.c
index c300675..285d9ca 100644
--- a/libusb/os/linux_usbfs.c
+++ b/libusb/os/linux_usbfs.c
@@ -1429,7 +1429,7 @@ static int op_get_configuration(struct libusb_device_handle *handle,
uint8_t *config)
{
struct linux_device_priv *priv = usbi_get_device_priv(handle->dev);
- int active_config;
+ int active_config = -1; /* to please compiler */
int r;
if (priv->sysfs_dir) {
--
2.17.0