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remote: free io area after we set the new area

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First set the new area, then destroy the old one. Otherwise the
data thread might still be using the old area and crash.
This commit is contained in:
Wim Taymans 2020-04-30 16:13:50 +02:00
parent dc331aa562
commit 0fd46d057e
2 changed files with 21 additions and 19 deletions
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20
pipewire-jack/src/pipewire-jack.c
View file

@ -1287,26 +1287,24 @@ static int client_node_set_io(void *object,
uint32_t size)
{
struct client *c = (struct client *) object;
struct pw_memmap *mm;
void *ptr;
struct pw_memmap *old, *mm;
void *ptr;
uint32_t tag[5] = { c->node_id, id, };
if ((mm = pw_mempool_find_tag(c->pool, tag, sizeof(tag))) != NULL)
pw_memmap_free(mm);
old = pw_mempool_find_tag(c->pool, tag, sizeof(tag));
if (mem_id == SPA_ID_INVALID) {
if (mem_id == SPA_ID_INVALID) {
mm = ptr = NULL;
size = 0;
}
else {
} else {
mm = pw_mempool_map_id(c->pool, mem_id,
PW_MEMMAP_FLAG_READWRITE, offset, size, tag);
if (mm == NULL) {
if (mm == NULL) {
pw_log_warn(NAME" %p: can't map memory id %u", c, mem_id);
return -errno;
}
}
ptr = mm->ptr;
}
}
pw_log_debug(NAME" %p: set io %s %p", c,
spa_debug_type_find_name(spa_type_io, id), ptr);
@ -1323,6 +1321,8 @@ static int client_node_set_io(void *object,
default:
break;
}
if (old != NULL)
pw_memmap_free(old);
return 0;
}