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coverity/155513: Do not assume xcalloc can return NULL

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ZyX 2017-01-23 01:52:36 +03:00
parent 043d8ba422
commit 47a7d32563
1 changed files with 40 additions and 46 deletions
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26
src/nvim/eval.c
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@ -9748,34 +9748,28 @@ static void f_function(typval_T *argvars, typval_T *rettv, FunPtr fptr)
} }
} }
if (dict_idx > 0 || arg_idx > 0 || arg_pt != NULL) { if (dict_idx > 0 || arg_idx > 0 || arg_pt != NULL) {
partial_T *pt = (partial_T *)xcalloc(1, sizeof(partial_T)); partial_T *const pt = xcalloc(1, sizeof(*pt));
// result is a VAR_PARTIAL // result is a VAR_PARTIAL
if (pt != NULL) {
if (arg_idx > 0 || (arg_pt != NULL && arg_pt->pt_argc > 0)) { if (arg_idx > 0 || (arg_pt != NULL && arg_pt->pt_argc > 0)) {
listitem_T *li; const int arg_len = (arg_pt == NULL ? 0 : arg_pt->pt_argc);
int i = 0; const int lv_len = (list == NULL ? 0 : list->lv_len);
int arg_len = 0;
int lv_len = 0;
if (arg_pt != NULL) {
arg_len = arg_pt->pt_argc;
}
if (list != NULL) {
lv_len = list->lv_len;
}
pt->pt_argc = arg_len + lv_len; pt->pt_argc = arg_len + lv_len;
pt->pt_argv = (typval_T *)xmalloc(sizeof(typval_T) * pt->pt_argc); pt->pt_argv = xmalloc(sizeof(pt->pt_argv[0]) * pt->pt_argc);
if (pt->pt_argv == NULL) { if (pt->pt_argv == NULL) {
xfree(pt); xfree(pt);
xfree(name); xfree(name);
return; return;
} else { } else {
for (i = 0; i < arg_len; i++) { int i = 0;
for (; i < arg_len; i++) {
copy_tv(&arg_pt->pt_argv[i], &pt->pt_argv[i]); copy_tv(&arg_pt->pt_argv[i], &pt->pt_argv[i]);
} }
if (lv_len > 0) { if (lv_len > 0) {
for (li = list->lv_first; li != NULL; li = li->li_next) { for (listitem_T *li = list->lv_first;
li != NULL;
li = li->li_next) {
copy_tv(&li->li_tv, &pt->pt_argv[i++]); copy_tv(&li->li_tv, &pt->pt_argv[i++]);
} }
} }
@ -9801,7 +9795,7 @@ static void f_function(typval_T *argvars, typval_T *rettv, FunPtr fptr)
pt->pt_refcount = 1; pt->pt_refcount = 1;
pt->pt_name = name; pt->pt_name = name;
func_ref(pt->pt_name); func_ref(pt->pt_name);
}
rettv->v_type = VAR_PARTIAL; rettv->v_type = VAR_PARTIAL;
rettv->vval.v_partial = pt; rettv->vval.v_partial = pt;
} else { } else {