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This was a regression that broke
$ udevadm trigger -nv --property-match=DEVNAME=/dev/sda1 --attr-match=size=409600
Reported by David Reisner.
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A NULL pointer was inserted as the first element of the strv.
This had the effect of always passing the empty environment to processes
spawned by udev.
Reported by Michał Bartoszkiewicz.
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asprintf() does not set errno.
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If for whatever reason there was nothing to load or loading failed, don't keep trying.
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Only 'real' devices are required to have an uevent file.
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This reverts b67f944. Lazy loading of device properties does not work for devices
that are received over netlink, as these are sealed. Reinstate the unconditional
loading of the device db.
Reported by: Mantas Mikulėnas <grawity@gmail.com>.
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device
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Boolean arithmetic is great, use it!
if (a && !b)
return 1;
if (!a && b)
return -1,
is equivalent to
if (a != b)
return a - b;
Furthermore:
r = false;
if (condition)
r = true;
is equivalent to:
r = condition;
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sd_device_new_from_* now returns -ENODEV when the device does not exist, and the enumerator
silently drops these errors as missing devices is exepected.
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It is still possible to include uninitialized ones, but now that is opt-in. In most
cases people only want initialized devices. Exception is if you want to work without
udev running.
Suggested by David Herrmann.
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This is rarely, if ever, used. Drop it from the new public API and only keep it for
the legacy API.
Suggested by David Herrmann.
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Right now, we always drop the last character of all values we write to
sysfs. Fix this!
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I shall not use alloca() within loops
I shall not use alloca() within loops
I shall not use alloca() within loops
I shall not use alloca() within loops
...
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Use the standard FOREACH_WORD* macros.
The current code was broken in the devlink case so the last one received
was being dropped, causing https://bugs.freedesktop.org/show_bug.cgi?id=89894
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unnecessarily
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This was getting leaked as a copy was added to the hashmap, simply add the
returned value instead.
This should fix CID #1292806.
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sysnum would not be initialized if sysname had no trailing digits.
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This provides equivalent functionality to libudev-device, but in the
systemd style. The public API only caters to creating sd_device objects
from for devices that already exist in /sys, there is no support for
listening for monitoring events or creating devices received over
the udev netlink protocol.
The private API contains the necessary functionality to make sd-device
a drop-in replacement for libudev-device, but which we would not
otherwise want to export.
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