CVS commit: xsrc/external/mit/xorg-server/dist/render

[matthew green <mrg%netbsd.org@localhost>]

Module Name:    xsrc
Committed By:   mrg
Date:           Thu Apr  1 11:37:56 UTC 2010

Modified Files:
        xsrc/external/mit/xorg-server/dist/render: glyph.c

Log Message:
import fdo git change 185185eeb44a277c324be0f58a4b4a469b56b69b, which
i've seen twice in the last two days:

Fix crash when all glyphs of a given depth are freed, but not all glyphsets
This is how the crash can be triggered with only two clients on the system:
Client A: (already running)
Client B: Connect
Client B: CreateGlyphSet(depthN)
Client A: Disconnect
Server: free globalGlyphs(depthN)
Client B: AddGlyphs(depthN)
Server: SEGV

This crash was introduced with the FindGlyphsByHash function
in 516b96387b0e57b524a37a96da22dbeeeb041712. Before that revision,
ResizeGlyphSet was always called before FindGlyphRef, which would
re-create globalGlyphs(depthN) if necessary.

X.Org Bug 20718 <http://bugs.freedesktop.org/show_bug.cgi?id=20718>

XXX: needs netbsd-5 pullup.


To generate a diff of this commit:
cvs rdiff -u -r1.1.1.2 -r1.2 \
    xsrc/external/mit/xorg-server/dist/render/glyph.c

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