nvmem: make nvmem_bus_type constant

Now that the driver core can properly handle constant struct bus_type,
move the nvmem_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Srinivas Kandagatla <srini@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Srinivas Kandagatla <srini@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250712181905.6738-6-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 880572ba515a59c09c6db45b97b72e00666ee375..817f55f3a19ef6349cb10120bc3eaa1a0b824957 100644 (file)
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -544,7 +544,7 @@ static const struct device_type nvmem_provider_type = {
        .release        = nvmem_release,
 };
 
-static struct bus_type nvmem_bus_type = {
+static const struct bus_type nvmem_bus_type = {
        .name           = "nvmem",
 };