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input_id: Fix endless loop for non-input devices

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When being called on a device which is not in the "input" subsystem, or doesn't
have an "input" parent, it got stuck in an endless loop. Unfortunately this
includes the virtual/input/mice multiplexer, which exposes this bug on just
about every system.
This commit is contained in:
Martin Pitt 2009-12-03 10:16:49 +01:00
parent 2ad6af0fc0
commit 22f9cb51c3
1 changed files with 1 additions and 1 deletions
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extras/input_id/input_id.c
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@ -143,7 +143,7 @@ int main (int argc, char** argv)
/* walk up the parental chain until we find the real input device; the
* argument is very likely a subdevice of this, like eventN */
while (udev_device_get_sysattr_value(dev, "capabilities/key") == NULL)
while (dev != NULL && udev_device_get_sysattr_value(dev, "capabilities/key") == NULL)
dev = udev_device_get_parent(dev);
/* Use this as a flag that input devices were detected, so that this