diff options
Diffstat (limited to 'drivers/nvmem')
| -rw-r--r-- | drivers/nvmem/core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index c05c4f4a7b9e..77d890d3623d 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -339,6 +339,9 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config) if (!config->dev) return ERR_PTR(-EINVAL); + if (!config->reg_read && !config->reg_write) + return ERR_PTR(-EINVAL); + nvmem = kzalloc(sizeof(*nvmem), GFP_KERNEL); if (!nvmem) return ERR_PTR(-ENOMEM); |