CVS commit: src/sys/external/bsd/drm2/dist/drm/nouveau

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sat Nov 22 22:32:48 UTC 2025

Modified Files:
        src/sys/external/bsd/drm2/dist/drm/nouveau: nouveau_fence.c

Log Message:
nouveau(4): Fix return value of fence wait.

kpause(9) returns EAGAIN/EWOULDBLOCK when it times out, which is
perfectly normal and expected here with an internal one-tick timeout
which should just go through another loop iteration.  This function
is expected to return the number of ticks left to wait when done, so
it reports timeout by returning zero, and is forbidden to fail with
EAGAIN/EWOULDBLOCK.

This is also forbidden to fail with EINTR -- on interruption it must
fail with the Linux ERESTARTSYS instead.  So map EINTR to that too
while here.

PR kern/59773: i386 11.0_BETA system crash (Xorg nouveau ?)


To generate a diff of this commit:
cvs rdiff -u -r1.17 -r1.18 \
    src/sys/external/bsd/drm2/dist/drm/nouveau/nouveau_fence.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.