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libudev: fix sysnum logic for digit-only device names

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Alan Jenkins 2008-10-17 13:19:54 +02:00 committed by Kay Sievers
parent 3feeb77c97
commit babcf3cb22
1 changed files with 6 additions and 1 deletions
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7
udev/lib/libudev-device.c
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@ -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;
}