4.19-stable review patch. If anyone has any objections, please let me know.
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From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ Upstream commit c076486b6a28aa584b3e86312442bac09279a015 ]
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove callback to the void returning variant.
Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Link: https://lore.kernel.org/r/11e06f4cce041436bd63fb24361f3cee06bd2d59.171275636... Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hsi/controllers/omap_ssi_port.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/hsi/controllers/omap_ssi_port.c b/drivers/hsi/controllers/omap_ssi_port.c index e6149fd43b628..2de7e54ddcca0 100644 --- a/drivers/hsi/controllers/omap_ssi_port.c +++ b/drivers/hsi/controllers/omap_ssi_port.c @@ -1259,7 +1259,7 @@ static int ssi_port_probe(struct platform_device *pd) return err; }
-static int ssi_port_remove(struct platform_device *pd) +static void ssi_port_remove(struct platform_device *pd) { struct hsi_port *port = platform_get_drvdata(pd); struct omap_ssi_port *omap_port = hsi_port_drvdata(port); @@ -1286,8 +1286,6 @@ static int ssi_port_remove(struct platform_device *pd)
pm_runtime_dont_use_autosuspend(&pd->dev); pm_runtime_disable(&pd->dev); - - return 0; }
static int ssi_restore_divisor(struct omap_ssi_port *omap_port) @@ -1422,7 +1420,7 @@ MODULE_DEVICE_TABLE(of, omap_ssi_port_of_match);
struct platform_driver ssi_port_pdriver = { .probe = ssi_port_probe, - .remove = ssi_port_remove, + .remove_new = ssi_port_remove, .driver = { .name = "omap_ssi_port", .of_match_table = omap_ssi_port_of_match,