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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-12-19 20:32:08 +0300
committerXu Yilun <yilun.xu@linux.intel.com>2023-12-21 17:33:15 +0300
commit4bfc170a319835a58ac94f2b95317632ee180584 (patch)
treeb462956d3a04a00faf3b1b1b87fe358a0650cd73 /drivers/fpga
parent8abe405a5c5f07ddb6ca65e682ea95fdcaa3beca (diff)
downloadlinux-4bfc170a319835a58ac94f2b95317632ee180584.tar.xz
fpga: socfpga-a10: Convert to platform remove callback returning void
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> Acked-by: Xu Yilun <yilun.xu@intel.com> Link: https://lore.kernel.org/r/da701d72522dde185becc15096342786a3a12153.1703006638.git.u.kleine-koenig@pengutronix.de Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Diffstat (limited to 'drivers/fpga')
-rw-r--r--drivers/fpga/socfpga-a10.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/fpga/socfpga-a10.c b/drivers/fpga/socfpga-a10.c
index cc4861e345c9..4c03513b8f03 100644
--- a/drivers/fpga/socfpga-a10.c
+++ b/drivers/fpga/socfpga-a10.c
@@ -517,15 +517,13 @@ static int socfpga_a10_fpga_probe(struct platform_device *pdev)
return 0;
}
-static int socfpga_a10_fpga_remove(struct platform_device *pdev)
+static void socfpga_a10_fpga_remove(struct platform_device *pdev)
{
struct fpga_manager *mgr = platform_get_drvdata(pdev);
struct a10_fpga_priv *priv = mgr->priv;
fpga_mgr_unregister(mgr);
clk_disable_unprepare(priv->clk);
-
- return 0;
}
static const struct of_device_id socfpga_a10_fpga_of_match[] = {
@@ -537,7 +535,7 @@ MODULE_DEVICE_TABLE(of, socfpga_a10_fpga_of_match);
static struct platform_driver socfpga_a10_fpga_driver = {
.probe = socfpga_a10_fpga_probe,
- .remove = socfpga_a10_fpga_remove,
+ .remove_new = socfpga_a10_fpga_remove,
.driver = {
.name = "socfpga_a10_fpga_manager",
.of_match_table = socfpga_a10_fpga_of_match,