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authorUwe Kleine-König <uwe@kleine-koenig.org>2023-03-11 01:41:28 +0300
committerLi Yang <leoyang.li@nxp.com>2023-05-31 02:58:43 +0300
commit59272ad8d9e8ea6398a96f8c6d62da284bf2ae6e (patch)
treeceaacaf7f7099dd194d0e5782d222606ce44d8f4 /drivers/bus
parentc27ea8e6325cad44c8c5bc2e8e7cc7635f358f31 (diff)
downloadlinux-59272ad8d9e8ea6398a96f8c6d62da284bf2ae6e.tar.xz
bus: fsl-mc: Make remove function return void
The value returned by an fsl-mc driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero and then device removal continues unconditionally.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com> Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com> # sanity checks Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Tested-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
Diffstat (limited to 'drivers/bus')
-rw-r--r--drivers/bus/fsl-mc/dprc-driver.c5
-rw-r--r--drivers/bus/fsl-mc/fsl-mc-allocator.c5
-rw-r--r--drivers/bus/fsl-mc/fsl-mc-bus.c5
3 files changed, 5 insertions, 10 deletions
diff --git a/drivers/bus/fsl-mc/dprc-driver.c b/drivers/bus/fsl-mc/dprc-driver.c
index ef4f43f67b80..595d4cecd041 100644
--- a/drivers/bus/fsl-mc/dprc-driver.c
+++ b/drivers/bus/fsl-mc/dprc-driver.c
@@ -835,13 +835,13 @@ EXPORT_SYMBOL_GPL(dprc_cleanup);
* It tears down the interrupts that were configured for the DPRC device.
* It destroys the interrupt pool associated with this MC bus.
*/
-static int dprc_remove(struct fsl_mc_device *mc_dev)
+static void dprc_remove(struct fsl_mc_device *mc_dev)
{
struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_dev);
if (!mc_bus->irq_resources) {
dev_err(&mc_dev->dev, "No irq resources, so unbinding the device failed\n");
- return 0;
+ return;
}
if (dev_get_msi_domain(&mc_dev->dev))
@@ -852,7 +852,6 @@ static int dprc_remove(struct fsl_mc_device *mc_dev)
dprc_cleanup(mc_dev);
dev_info(&mc_dev->dev, "DPRC device unbound from driver");
- return 0;
}
static const struct fsl_mc_device_id match_id_table[] = {
diff --git a/drivers/bus/fsl-mc/fsl-mc-allocator.c b/drivers/bus/fsl-mc/fsl-mc-allocator.c
index 36f70e5e418b..0ad68099684e 100644
--- a/drivers/bus/fsl-mc/fsl-mc-allocator.c
+++ b/drivers/bus/fsl-mc/fsl-mc-allocator.c
@@ -614,19 +614,18 @@ static int fsl_mc_allocator_probe(struct fsl_mc_device *mc_dev)
* fsl_mc_allocator_remove - callback invoked when an allocatable device is
* being removed from the system
*/
-static int fsl_mc_allocator_remove(struct fsl_mc_device *mc_dev)
+static void fsl_mc_allocator_remove(struct fsl_mc_device *mc_dev)
{
int error;
if (mc_dev->resource) {
error = fsl_mc_resource_pool_remove_device(mc_dev);
if (error < 0)
- return 0;
+ return;
}
dev_dbg(&mc_dev->dev,
"Allocatable fsl-mc device unbound from fsl_mc_allocator driver");
- return 0;
}
static const struct fsl_mc_device_id match_id_table[] = {
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index 410693ff7335..4352745a923c 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
@@ -454,11 +454,8 @@ static int fsl_mc_driver_remove(struct device *dev)
{
struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(dev->driver);
struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
- int error;
- error = mc_drv->remove(mc_dev);
- if (error < 0)
- dev_err(dev, "%s failed: %d\n", __func__, error);
+ mc_drv->remove(mc_dev);
return 0;
}