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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2020-11-26 19:59:50 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2020-12-03 17:01:22 +0300
commit6d247e4d264961aa3b871290f9b11a48d5a567f2 (patch)
treeb3fa945f32e251908f2177e26cca191bb817535b /drivers/ps3
parent7ff94669e7d8e50756cd57947283381ae9665759 (diff)
downloadlinux-6d247e4d264961aa3b871290f9b11a48d5a567f2.tar.xz
powerpc/ps3: make system bus's remove and shutdown callbacks return void
The driver core ignores the return value of struct device_driver::remove because there is only little that can be done. For the shutdown callback it's ps3_system_bus_shutdown() which ignores the return value. To simplify the quest to make struct device_driver::remove return void, let struct ps3_system_bus_driver::remove return void, too. All users already unconditionally return 0, this commit makes it obvious that returning an error code is a bad idea and ensures future users behave accordingly. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201126165950.2554997-2-u.kleine-koenig@pengutronix.de
Diffstat (limited to 'drivers/ps3')
-rw-r--r--drivers/ps3/ps3-lpm.c3
-rw-r--r--drivers/ps3/ps3-vuart.c10
2 files changed, 5 insertions, 8 deletions
diff --git a/drivers/ps3/ps3-lpm.c b/drivers/ps3/ps3-lpm.c
index e54aa2d82f50..65512b6cc6fd 100644
--- a/drivers/ps3/ps3-lpm.c
+++ b/drivers/ps3/ps3-lpm.c
@@ -1196,7 +1196,7 @@ static int ps3_lpm_probe(struct ps3_system_bus_device *dev)
return 0;
}
-static int ps3_lpm_remove(struct ps3_system_bus_device *dev)
+static void ps3_lpm_remove(struct ps3_system_bus_device *dev)
{
dev_dbg(&dev->core, " -> %s:%u:\n", __func__, __LINE__);
@@ -1206,7 +1206,6 @@ static int ps3_lpm_remove(struct ps3_system_bus_device *dev)
lpm_priv = NULL;
dev_info(&dev->core, " <- %s:%u:\n", __func__, __LINE__);
- return 0;
}
static struct ps3_system_bus_driver ps3_lpm_driver = {
diff --git a/drivers/ps3/ps3-vuart.c b/drivers/ps3/ps3-vuart.c
index 4ed131eaff51..e34ae6a442c7 100644
--- a/drivers/ps3/ps3-vuart.c
+++ b/drivers/ps3/ps3-vuart.c
@@ -1102,7 +1102,7 @@ static int ps3_vuart_cleanup(struct ps3_system_bus_device *dev)
* device can no longer be used.
*/
-static int ps3_vuart_remove(struct ps3_system_bus_device *dev)
+static void ps3_vuart_remove(struct ps3_system_bus_device *dev)
{
struct ps3_vuart_port_priv *priv = to_port_priv(dev);
struct ps3_vuart_port_driver *drv;
@@ -1118,7 +1118,7 @@ static int ps3_vuart_remove(struct ps3_system_bus_device *dev)
dev_dbg(&dev->core, "%s:%d: no driver bound\n", __func__,
__LINE__);
mutex_unlock(&vuart_bus_priv.probe_mutex);
- return 0;
+ return;
}
drv = ps3_system_bus_dev_to_vuart_drv(dev);
@@ -1141,7 +1141,6 @@ static int ps3_vuart_remove(struct ps3_system_bus_device *dev)
dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
mutex_unlock(&vuart_bus_priv.probe_mutex);
- return 0;
}
/**
@@ -1154,7 +1153,7 @@ static int ps3_vuart_remove(struct ps3_system_bus_device *dev)
* sequence.
*/
-static int ps3_vuart_shutdown(struct ps3_system_bus_device *dev)
+static void ps3_vuart_shutdown(struct ps3_system_bus_device *dev)
{
struct ps3_vuart_port_driver *drv;
@@ -1169,7 +1168,7 @@ static int ps3_vuart_shutdown(struct ps3_system_bus_device *dev)
dev_dbg(&dev->core, "%s:%d: no driver bound\n", __func__,
__LINE__);
mutex_unlock(&vuart_bus_priv.probe_mutex);
- return 0;
+ return;
}
drv = ps3_system_bus_dev_to_vuart_drv(dev);
@@ -1193,7 +1192,6 @@ static int ps3_vuart_shutdown(struct ps3_system_bus_device *dev)
dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
mutex_unlock(&vuart_bus_priv.probe_mutex);
- return 0;
}
static int __init ps3_vuart_bus_init(void)