{
static const int mr_map[] = { 4, 64, 1024, 0 };
+#ifdef __KERNEL__
+ BUG_ON(max_rom & ~0x3);
csr->max_rom = mr_map[max_rom];
+#else
+ if (max_rom & ~0x3) /* caller supplied invalid argument */
+ csr->max_rom = 0;
+ else
+ csr->max_rom = mr_map[max_rom];
+#endif
memcpy(csr->bus_info_data, bus_info_data, csr->bus_info_len);
}
static const int pd[4] = { 0, 4, 16, 256 };
static const int cs[16] = { 4, 2 };
struct csr1212_keyval *kv;
- int palette_size = pd[palette_depth] * cs[color_space];
+ int palette_size;
int pixel_size = (hscan * vscan + 3) & ~0x3;
- if ((palette_depth && !palette) || !pixels)
+ if (!pixels || (!palette && palette_depth) ||
+ (palette_depth & ~0x3) || (color_space & ~0xf))
return NULL;
+ palette_size = pd[palette_depth] * cs[color_space];
+
kv = csr1212_new_descriptor_leaf(1, 0, NULL,
palette_size + pixel_size +
CSR1212_ICON_DESCRIPTOR_LEAF_OVERHEAD);
struct csr1212_csr_rom_cache *cache;
u_int64_t csr_addr;
- if (!csr || !csr->ops->allocate_addr_range ||
- !csr->ops->release_addr)
- return CSR1212_ENOMEM;
+ if (!csr || !csr->ops || !csr->ops->allocate_addr_range ||
+ !csr->ops->release_addr || csr->max_rom < 1)
+ return CSR1212_EINVAL;
/* ROM size must be a multiple of csr->max_rom */
romsize = (romsize + (csr->max_rom - 1)) & ~(csr->max_rom - 1);
csr_addr = csr->ops->allocate_addr_range(romsize, csr->max_rom, csr->private);
- if (csr_addr == ~0ULL) {
+ if (csr_addr == CSR1212_INVALID_ADDR_SPACE) {
return CSR1212_ENOMEM;
}
if (csr_addr < CSR1212_REGISTER_SPACE_BASE) {
/* Make sure the Extended ROM leaf is a multiple of
* max_rom in size. */
+ if (csr->max_rom < 1)
+ return CSR1212_EINVAL;
leaf_size = (cache->len + (csr->max_rom - 1)) &
~(csr->max_rom - 1);
return CSR1212_EINVAL;
#endif
- cr = CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ cr = CSR1212_MALLOC(sizeof(*cr));
if (!cr)
return CSR1212_ENOMEM;
case CSR1212_KV_TYPE_LEAF:
if (kv->key.id != CSR1212_KV_ID_EXTENDED_ROM) {
kv->value.leaf.data = CSR1212_MALLOC(quads_to_bytes(kvi_len));
- if (!kv->value.leaf.data)
- {
+ if (!kv->value.leaf.data) {
ret = CSR1212_ENOMEM;
goto fail;
}
u_int32_t *cache_ptr;
u_int16_t kv_len = 0;
- if (!csr || !kv)
+ if (!csr || !kv || csr->max_rom < 1)
return CSR1212_EINVAL;
/* First find which cache the data should be in (or go in if not read
cache->next = NULL;
csr->cache_tail = cache;
cache->filled_head =
- CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ CSR1212_MALLOC(sizeof(*cache->filled_head));
if (!cache->filled_head) {
return CSR1212_ENOMEM;
}
/* Now seach read portions of the cache to see if it is there. */
for (cr = cache->filled_head; cr; cr = cr->next) {
if (cache_index < cr->offset_start) {
- newcr = CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ newcr = CSR1212_MALLOC(sizeof(*newcr));
if (!newcr)
return CSR1212_ENOMEM;
if (!cr) {
cr = cache->filled_tail;
- newcr = CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ newcr = CSR1212_MALLOC(sizeof(*newcr));
if (!newcr)
return CSR1212_ENOMEM;
struct csr1212_dentry *dentry;
int ret;
- if (!csr || !csr->ops->bus_read)
+ if (!csr || !csr->ops || !csr->ops->bus_read)
return CSR1212_EINVAL;
ret = csr1212_parse_bus_info_block(csr);
if (!csr->ops->get_max_rom)
csr->max_rom = mr_map[0]; /* default value */
- else
- csr->max_rom = mr_map[csr->ops->get_max_rom(csr->bus_info_data,
- csr->private)];
+ else {
+ int i = csr->ops->get_max_rom(csr->bus_info_data,
+ csr->private);
+ if (i & ~0x3)
+ return CSR1212_EINVAL;
+ csr->max_rom = mr_map[i];
+ }
csr->cache_head->layout_head = csr->root_kv;
csr->cache_head->layout_tail = csr->root_kv;
csr->root_kv->valid = 0;
csr->root_kv->next = csr->root_kv;
csr->root_kv->prev = csr->root_kv;
- csr1212_get_keyval(csr, csr->root_kv);
+ ret = _csr1212_read_keyval(csr, csr->root_kv);
+ if (ret != CSR1212_SUCCESS)
+ return ret;
/* Scan through the Root directory finding all extended ROM regions
* and make cache regions for them */
for (dentry = csr->root_kv->value.directory.dentries_head;
dentry; dentry = dentry->next) {
- if (dentry->kv->key.id == CSR1212_KV_ID_EXTENDED_ROM) {
- csr1212_get_keyval(csr, dentry->kv);
-
+ if (dentry->kv->key.id == CSR1212_KV_ID_EXTENDED_ROM &&
+ !dentry->kv->valid) {
+ ret = _csr1212_read_keyval(csr, dentry->kv);
if (ret != CSR1212_SUCCESS)
return ret;
}