diff options
| -rw-r--r-- | udev/lib/libudev-device.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c index 65ba6e30d8..b5d42354e5 100644 --- a/udev/lib/libudev-device.c +++ b/udev/lib/libudev-device.c @@ -936,8 +936,13 @@ int udev_device_set_syspath(struct udev_device *udev_device, const char *syspath } /* trailing number */ - while (isdigit(udev_device->sysname[--len])) + while (len > 0 && isdigit(udev_device->sysname[--len])) udev_device->sysnum = &udev_device->sysname[len]; + + /* sysname is completely numeric */ + if (len == 0) + udev_device->sysnum = NULL; + return 0; } |