[PATCH] nvmem: core: make default user binary file root-access only

From: Srinivas Kandagatla
Date: Wed Oct 07 2015 - 12:35:23 EST


As required by many providers like at24/at25/mxs-ocotp/qfprom, which would
want to allow root-only to read/write the nvmem content.
So making the defaults to be root-only access which can prevent normal
users from reading the nvmem data.

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 6fd4e5a..4d2e476 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -112,7 +112,7 @@ static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj,
static struct bin_attribute bin_attr_rw_nvmem = {
.attr = {
.name = "nvmem",
- .mode = S_IWUSR | S_IRUGO,
+ .mode = S_IWUSR | S_IRUSR,
},
.read = bin_attr_nvmem_read,
.write = bin_attr_nvmem_write,
@@ -136,7 +136,7 @@ static const struct attribute_group *nvmem_rw_dev_groups[] = {
static struct bin_attribute bin_attr_ro_nvmem = {
.attr = {
.name = "nvmem",
- .mode = S_IRUGO,
+ .mode = S_IRUSR,
},
.read = bin_attr_nvmem_read,
};
--
1.9.1

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