diff options
Diffstat (limited to 'components/lwp/lwp_shm.c')
| -rw-r--r-- | components/lwp/lwp_shm.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/components/lwp/lwp_shm.c b/components/lwp/lwp_shm.c index 8c765fc8c9..51964dd2b8 100644 --- a/components/lwp/lwp_shm.c +++ b/components/lwp/lwp_shm.c @@ -101,7 +101,7 @@ static int _lwp_shmget(size_t key, size_t size, int create) int id = -1; struct lwp_avl_struct *node_key = 0; struct lwp_avl_struct *node_pa = 0; - void *page_addr = 0, *page_addr_p = RT_NULL; + void *page_addr = 0; uint32_t bit = 0; /* try to locate the item with the key in the binary tree */ @@ -134,11 +134,10 @@ static int _lwp_shmget(size_t key, size_t size, int create) { goto err; } - page_addr_p = (void *)((char *)page_addr + PV_OFFSET); /* physical address */ /* initialize the shared memory structure */ p = _shm_ary + id; - p->addr = (size_t)page_addr_p; + p->addr = (size_t)page_addr; p->size = (1UL << (bit + ARCH_PAGE_SHIFT)); p->ref = 0; p->key = key; @@ -236,7 +235,7 @@ static int _lwp_shmrm(int id) return 0; } bit = rt_page_bits(p->size); - rt_pages_free((void *)((char *)p->addr - PV_OFFSET), bit); + rt_pages_free((void *)p->addr, bit); lwp_avl_remove(node_key, &shm_tree_key); node_pa = node_key + 1; lwp_avl_remove(node_pa, &shm_tree_pa); |