diff options
Diffstat (limited to 'drivers/staging/greybus/operation.c')
| -rw-r--r-- | drivers/staging/greybus/operation.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/staging/greybus/operation.c b/drivers/staging/greybus/operation.c index 7617410f7c5a..8a023cbbf511 100644 --- a/drivers/staging/greybus/operation.c +++ b/drivers/staging/greybus/operation.c @@ -299,6 +299,12 @@ gb_operation_message_alloc(struct greybus_host_device *hd, u8 type, size_t size; u8 *buffer; + if (hd->buffer_size_max > GB_OPERATION_MESSAGE_SIZE_MAX) { + pr_warn("limiting buffer size to %u\n", + GB_OPERATION_MESSAGE_SIZE_MAX); + hd->buffer_size_max = GB_OPERATION_MESSAGE_SIZE_MAX; + } + if (message_size > hd->buffer_size_max) return NULL; @@ -750,6 +756,9 @@ int gb_operation_sync(struct gb_connection *connection, int type, int gb_operation_init(void) { + BUILD_BUG_ON(GB_OPERATION_MESSAGE_SIZE_MAX > + U16_MAX - sizeof(struct gb_operation_msg_hdr)); + gb_operation_cache = kmem_cache_create("gb_operation_cache", sizeof(struct gb_operation), 0, 0, NULL); if (!gb_operation_cache) |