Currently /dev/hwrng uses default device node permissions
which is 0600. So by default the device node is not accessible
by an ordinary user. Some distros do rewrite the device node
permissions via udev rule, others don't. This patch provides
0444 as the new mode value and so makes the device node
accessible for all users without the need to have udev rules
rewriting the access rights.
Signed-off-by: Harald Freudenberger <freude@xxxxxxxxxxxxxxxxxx>
---
drivers/char/hw_random/core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 503a41d..4093db5 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -285,6 +285,7 @@ static struct miscdevice rng_miscdev = {
.minor = HWRNG_MINOR,
.name = RNG_MODULE_NAME,
.nodename = "hwrng",
+ .mode = 0444,
.fops = &rng_chrdev_ops,
.groups = rng_dev_groups,
};
--
2.7.4
