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change behavior of cmap_work_alloc().

This commit is contained in:
uch 2001-06-05 15:02:12 +00:00
parent 390ea77cb0
commit a4221d6b08
1 changed files with 19 additions and 7 deletions
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26
sys/dev/hpc/video_subr.c
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@ -1,4 +1,4 @@
/* $NetBSD: video_subr.c,v 1.2 2001/06/04 18:59:32 uch Exp $ */
/* $NetBSD: video_subr.c,v 1.3 2001/06/05 15:02:12 uch Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@ -161,14 +161,26 @@ int
cmap_work_alloc(u_int8_t **r, u_int8_t **g, u_int8_t **b, u_int32_t **rgb,
int cnt)
{
KASSERT(r && g && b && rgb && LEGAL_CLUT_INDEX(cnt - 1));
KASSERT(LEGAL_CLUT_INDEX(cnt - 1));
*r = malloc(cnt * sizeof(u_int8_t), M_DEVBUF, M_WAITOK);
*g = malloc(cnt * sizeof(u_int8_t), M_DEVBUF, M_WAITOK);
*b = malloc(cnt * sizeof(u_int8_t), M_DEVBUF, M_WAITOK);
*rgb = malloc(cnt * sizeof(u_int32_t), M_DEVBUF, M_WAITOK);
#define ALLOC_BUF(x, bit) \
if (x) { \
*x = malloc(cnt * sizeof(u_int ## bit ## _t), \
M_DEVBUF, M_WAITOK); \
if (*x == 0) \
goto errout; \
}
ALLOC_BUF(r, 8);
ALLOC_BUF(g, 8);
ALLOC_BUF(b, 8);
ALLOC_BUF(rgb, 32);
#undef ALLOCBUF
return (!(*r && *g && *b && *rgb));
return (0);
errout:
cmap_work_free(*r, *g, *b, *rgb);
return (1);
}
void