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mesa: add null checks in symbol_table.c

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Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
This commit is contained in:
Juha-Pekka Heikkila 2014-02-25 15:24:34 +02:00 • committed by Tapani Pälli
parent 6e56eaf7b7
commit 36f8042e8c
1 changed files with 30 additions and 0 deletions
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30
src/mesa/program/symbol_table.c
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@ -172,6 +172,11 @@ _mesa_symbol_table_push_scope(struct _mesa_symbol_table *table)
{
struct scope_level *const scope = calloc(1, sizeof(*scope));
if (scope == NULL) {
_mesa_error_no_memory(__func__);
return;
}
scope->next = table->current_scope;
table->current_scope = scope;
table->depth++;
@ -254,7 +259,17 @@ _mesa_symbol_table_add_symbol(struct _mesa_symbol_table *table,
if (hdr == NULL) {
hdr = calloc(1, sizeof(*hdr));
if (hdr == NULL) {
_mesa_error_no_memory(__func__);
return -1;
}
hdr->name = strdup(name);
if (hdr->name == NULL) {
free(hdr);
_mesa_error_no_memory(__func__);
return -1;
}
hash_table_insert(table->ht, hdr, hdr->name);
hdr->next = table->hdr;
@ -276,6 +291,11 @@ _mesa_symbol_table_add_symbol(struct _mesa_symbol_table *table,
return -1;
sym = calloc(1, sizeof(*sym));
if (sym == NULL) {
_mesa_error_no_memory(__func__);
return -1;
}
sym->next_with_same_name = hdr->symbols;
sym->next_with_same_scope = table->current_scope->symbols;
sym->hdr = hdr;
@ -311,6 +331,11 @@ _mesa_symbol_table_add_global_symbol(struct _mesa_symbol_table *table,
if (hdr == NULL) {
hdr = calloc(1, sizeof(*hdr));
if (hdr == NULL) {
_mesa_error_no_memory(__func__);
return -1;
}
hdr->name = strdup(name);
hash_table_insert(table->ht, hdr, hdr->name);
@ -340,6 +365,11 @@ _mesa_symbol_table_add_global_symbol(struct _mesa_symbol_table *table,
}
sym = calloc(1, sizeof(*sym));
if (sym == NULL) {
_mesa_error_no_memory(__func__);
return -1;
}
sym->next_with_same_scope = top_scope->symbols;
sym->hdr = hdr;
sym->name_space = name_space;