[PATCH] doPolyText: forget about FontChange's XID after looking up pFont.
Jeremy Huddleston
jeremyhu at apple.com
Fri May 21 11:34:26 PDT 2010
Reviewed-by: Jeremy Huddleston <jeremyhu at apple.com>
Tested-by: Jeremy Huddleston <jeremyhu at apple.com>
On May 21, 2010, at 11:12, Jamey Sharp wrote:
> As of e2929db7b737413cf93fbebdf4d15abdfebff05c, doPolyText uses pFont
> consistently rather than looking it up again from the saved XID.
>
> clang noticed that "oldfid = fid" could run when fid hadn't been
> initialized yet.
>
> Signed-off-by: Jamey Sharp <jamey at minilop.net>
> ---
> Same patch, with a commit message that isn't wrong this time.
>
> dix/dixfonts.c | 6 ++----
> 1 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/dix/dixfonts.c b/dix/dixfonts.c
> index ba1d0e2..b6d54f8 100644
> --- a/dix/dixfonts.c
> +++ b/dix/dixfonts.c
> @@ -1173,7 +1173,6 @@ int
> doPolyText(ClientPtr client, PTclosurePtr c)
> {
> FontPtr pFont = c->pGC->font, oldpFont;
> - Font fid, oldfid;
> int err = Success, lgerr; /* err is in X error, not font error, space */
> enum { NEVER_SLEPT, START_SLEEP, SLEEPING } client_state = NEVER_SLEPT;
> FontPathElementPtr fpe;
> @@ -1221,6 +1220,7 @@ doPolyText(ClientPtr client, PTclosurePtr c)
> {
> if (*c->pElt == FontChange)
> {
> + Font fid;
> if (c->endReq - c->pElt < FontShiftSize)
> {
> err = BadLength;
> @@ -1228,7 +1228,6 @@ doPolyText(ClientPtr client, PTclosurePtr c)
> }
>
> oldpFont = pFont;
> - oldfid = fid;
>
> fid = ((Font)*(c->pElt+4)) /* big-endian */
> | ((Font)*(c->pElt+3)) << 8
> @@ -1238,9 +1237,8 @@ doPolyText(ClientPtr client, PTclosurePtr c)
> client, DixUseAccess);
> if (err != Success)
> {
> - /* restore pFont and fid for step 4 (described below) */
> + /* restore pFont for step 4 (described below) */
> pFont = oldpFont;
> - fid = oldfid;
>
> /* If we're in START_SLEEP mode, the following step
> shortens the request... in the unlikely event that
> --
> 1.7.0
>
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