Messages in this thread Patch in this message | | | From | Srinivas Kandagatla <> | Subject | [PATCH 08/14] nvmem: core: validate nvmem config before parsing | Date | Tue, 10 Mar 2020 13:22:51 +0000 |
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nvmem provider has to provide either reg_read/write, add a check to enforce this.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> --- drivers/nvmem/core.c | 3 +++ 1 file changed, 3 insertions(+)
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); -- 2.21.0
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