tile-srom: allow the driver to be built as a module

The code was already configured that way, but the Kconfig
file didn't support requesting it.

A buglet caused a null pointer deref when unloading the
module, but this commit also corrects that issue.

Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chris Metcalf 2016-11-07 15:56:37 -05:00 committed by Greg Kroah-Hartman
parent e0cb6b2f87
commit 71aeebff2c
2 changed files with 3 additions and 2 deletions

View File

@ -577,7 +577,7 @@ config DEVPORT
source "drivers/s390/char/Kconfig"
config TILE_SROM
bool "Character-device access via hypervisor to the Tilera SPI ROM"
tristate "Character-device access via hypervisor to the Tilera SPI ROM"
depends on TILE
default y
---help---

View File

@ -312,7 +312,8 @@ ATTRIBUTE_GROUPS(srom_dev);
static char *srom_devnode(struct device *dev, umode_t *mode)
{
*mode = S_IRUGO | S_IWUSR;
if (mode)
*mode = 0644;
return kasprintf(GFP_KERNEL, "srom/%s", dev_name(dev));
}