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authorThierry Reding <treding@nvidia.com>2015-12-02 17:24:20 +0100
committerThierry Reding <treding@nvidia.com>2015-12-14 10:50:32 +0100
commit28fae81f93d5482f25bb8e9881104ad1157c2cfd (patch)
treec54e3bc748bd6240477d80485444b98e58a121bc /drivers/gpu/host1x
parent663a233eef643b38f36c05535cb5c9a4972edcc1 (diff)
downloadlinux-stericsson-28fae81f93d5482f25bb8e9881104ad1157c2cfd.tar.gz
gpu: host1x: Use platform_register/unregister_drivers()
These new helpers simplify implementing multi-driver modules and properly handle failure to register one driver by unregistering all previously registered drivers. Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/host1x')
-rw-r--r--drivers/gpu/host1x/dev.c22
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 53d3d1d45b48..64d9b707ee1a 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -212,6 +212,11 @@ static struct platform_driver tegra_host1x_driver = {
.remove = host1x_remove,
};
+static struct platform_driver * const drivers[] = {
+ &tegra_host1x_driver,
+ &tegra_mipi_driver,
+};
+
static int __init tegra_host1x_init(void)
{
int err;
@@ -220,28 +225,17 @@ static int __init tegra_host1x_init(void)
if (err < 0)
return err;
- err = platform_driver_register(&tegra_host1x_driver);
- if (err < 0)
- goto unregister_bus;
-
- err = platform_driver_register(&tegra_mipi_driver);
+ err = platform_register_drivers(drivers, ARRAY_SIZE(drivers));
if (err < 0)
- goto unregister_host1x;
+ bus_unregister(&host1x_bus_type);
- return 0;
-
-unregister_host1x:
- platform_driver_unregister(&tegra_host1x_driver);
-unregister_bus:
- bus_unregister(&host1x_bus_type);
return err;
}
module_init(tegra_host1x_init);
static void __exit tegra_host1x_exit(void)
{
- platform_driver_unregister(&tegra_mipi_driver);
- platform_driver_unregister(&tegra_host1x_driver);
+ platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
bus_unregister(&host1x_bus_type);
}
module_exit(tegra_host1x_exit);