[Bug 1867692] libsane-airscan-0.99.12-1.fc33: airscan driver crashes in mock: file airscan-wsdd.c: line 1696 (wsdd_cleanup): assertion failed: (ll_empty(&wsdd_finding_list))

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https://bugzilla.redhat.com/show_bug.cgi?id=1867692



--- Comment #5 from Zdenek Dohnal <zdohnal@xxxxxxxxxx> ---
Created attachment 1711079
  --> https://bugzilla.redhat.com/attachment.cgi?id=1711079&action=edit
Patch proposed upstream

In sane_init() airscan backend was calling sane_exit(), which is linked to
sane_exit() function from sane-backends library, not to sane_exit() from
airscan.

I checked pixma backend how they handle errors within sane_init() - it just
returns error code and let the application cleanup after itself.

If I update airscan to reflect the pixma behavior, it works again without
segfault.


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