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libudev: fix sysnum logic for digit-only device names
[elogind.git]
/
udev
/
lib
/
libudev-device.c
diff --git
a/udev/lib/libudev-device.c
b/udev/lib/libudev-device.c
index 65ba6e30d83ef736389d413578e6877473a5e9bb..b5d42354e548d31c33f4304f6e35ef6049d362dd 100644
(file)
--- 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 */
}
/* trailing number */
- while (isdigit(udev_device->sysname[--len]))
+ while (
len > 0 &&
isdigit(udev_device->sysname[--len]))
udev_device->sysnum = &udev_device->sysname[len];
udev_device->sysnum = &udev_device->sysname[len];
+
+ /* sysname is completely numeric */
+ if (len == 0)
+ udev_device->sysnum = NULL;
+
return 0;
}
return 0;
}