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udisks2: Be more tolerant of device-startup time #1359

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udisks2: Be more tolerant of device-startup time #1359

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Commits on Apr 26, 2024

  1. udisks2: Be more tolerant of device-startup time 

    When switching an SDWire to 'host' mode, it may take time for the
partition to appear.

During that time the device (e.g. '/dev/sdo1') may not exist, so trying
to cat e.g. '/sys/call/block/sdo1' fails. Handle this by returning a
zero size in that case, as is done when the returned size is empty.

Even when the block device is present, udisks2 may take a short time to
make the device available. Handle this by retrying a few times, until
things settle.

Add the call to _wait_for_medium() in write_files() while we are here,
to match what is done in write_image(). Also fix the parameter type for
write_files() and mention the exception it may raise.

Fixes: labgrid-project#1357

Signed-off-by: Simon Glass <sjg@chromium.org>
    @sjg20
    sjg20 committed Apr 26, 2024
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