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kconfig: add xrealloc() helper

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We already have xmalloc(), xcalloc().  Add xrealloc() as well
to save tedious error handling.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2018-02-09 01:19:07 +09:00
parent 9e3e10c725
commit d717f24d8c
6 changed files with 16 additions and 5 deletions
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11
scripts/kconfig/util.c
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@ -104,7 +104,7 @@ void str_append(struct gstr *gs, const char *s)
if (s) {
l = strlen(gs->s) + strlen(s) + 1;
if (l > gs->len) {
gs->s = realloc(gs->s, l);
gs->s = xrealloc(gs->s, l);
gs->len = l;
}
strcat(gs->s, s);
@ -145,3 +145,12 @@ void *xcalloc(size_t nmemb, size_t size)
fprintf(stderr, "Out of memory.\n");
exit(1);
}
void *xrealloc(void *p, size_t size)
{
p = realloc(p, size);
if (p)
return p;
fprintf(stderr, "Out of memory.\n");
exit(1);
}