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dmaengine: idxd: use const struct bus_type *

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In the functions unbind_store() and bind_store(), a struct bus_type *
should be a const one, as the driver core bus functions used by this
variable are expecting the pointer to be constant, and these functions
do not modify the pointer at all.

Cc: dmaengine@vger.kernel.org
Acked-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20230313182918.1312597-32-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2023-03-13 19:29:14 +01:00
parent 94a1150421
commit 790f3b60ac
1 changed files with 2 additions and 2 deletions
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4
drivers/dma/idxd/compat.c
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@ -16,7 +16,7 @@ extern void device_driver_detach(struct device *dev);
static ssize_t unbind_store(struct device_driver *drv, const char *buf, size_t count)
{
struct bus_type *bus = drv->bus;
const struct bus_type *bus = drv->bus;
struct device *dev;
int rc = -ENODEV;
@ -32,7 +32,7 @@ static DRIVER_ATTR_IGNORE_LOCKDEP(unbind, 0200, NULL, unbind_store);
static ssize_t bind_store(struct device_driver *drv, const char *buf, size_t count)
{
struct bus_type *bus = drv->bus;
const struct bus_type *bus = drv->bus;
struct device *dev;
struct device_driver *alt_drv = NULL;
int rc = -ENODEV;