[PATCH 2/6] nvmem: core: let stride and word_size default to 1

From: srinivas . kandagatla
Date: Fri Dec 15 2017 - 09:15:16 EST


From: Heiner Kallweit <hkallweit1@xxxxxxxxx>

If the caller doesn't set stride and/or word_size in struct nvmem_config
then nvmem_register accepts this but we may face strange effects later
due to both values being 0. Therefore use 1 as default for both values.

Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
---
drivers/nvmem/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 93084ab61e0f..4f37c9f3d120 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -464,8 +464,8 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
nvmem->owner = config->owner;
if (!nvmem->owner && config->dev->driver)
nvmem->owner = config->dev->driver->owner;
- nvmem->stride = config->stride;
- nvmem->word_size = config->word_size;
+ nvmem->stride = config->stride ?: 1;
+ nvmem->word_size = config->word_size ?: 1;
nvmem->size = config->size;
nvmem->dev.type = &nvmem_provider_type;
nvmem->dev.bus = &nvmem_bus_type;
--
2.15.0