xfixes: replace xallocarray() by calloc()

Only key difference that calloc(), in contrast to rellocarray(),
is zero-initializing. The overhead is hard to measure on today's
machines, and it's safer programming practise to always allocate
zero-initialized, so one can't forget to do it explicitly.

Cocci rule:

    @@
    expression COUNT;
    expression LEN;
    @@
    - xallocarray(COUNT,LEN)
    + calloc(COUNT,LEN)

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This commit is contained in:
Enrico Weigelt, metux IT consult 2025-02-24 12:15:01 +01:00
parent 037a595ad7
commit f55e01f5d8

View File

@ -748,7 +748,7 @@ ProcXFixesExpandRegion(ClientPtr client)
nBoxes = RegionNumRects(pSource);
pSrc = RegionRects(pSource);
if (nBoxes) {
pTmp = xallocarray(nBoxes, sizeof(BoxRec));
pTmp = calloc(nBoxes, sizeof(BoxRec));
if (!pTmp)
return BadAlloc;
for (i = 0; i < nBoxes; i++) {