6.6-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 14914a115e807aa2f8025e451133627a64120ac3 ]
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.
Acked-by: Herve Codina herve.codina@bootlin.com Link: https://lore.kernel.org/r/20230925095532.1984344-7-u.kleine-koenig@pengutron... Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Stable-dep-of: cb3daa51db81 ("soc: fsl: cpm1: qmc: Set the ret error code on platform_get_irq() failure") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soc/fsl/qe/qmc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c index 8dc73cc1a83b1..2312152a44b3e 100644 --- a/drivers/soc/fsl/qe/qmc.c +++ b/drivers/soc/fsl/qe/qmc.c @@ -1414,7 +1414,7 @@ static int qmc_probe(struct platform_device *pdev) return ret; }
-static int qmc_remove(struct platform_device *pdev) +static void qmc_remove(struct platform_device *pdev) { struct qmc *qmc = platform_get_drvdata(pdev);
@@ -1426,8 +1426,6 @@ static int qmc_remove(struct platform_device *pdev)
/* Disconnect the serial from TSA */ tsa_serial_disconnect(qmc->tsa_serial); - - return 0; }
static const struct of_device_id qmc_id_table[] = { @@ -1442,7 +1440,7 @@ static struct platform_driver qmc_driver = { .of_match_table = of_match_ptr(qmc_id_table), }, .probe = qmc_probe, - .remove = qmc_remove, + .remove_new = qmc_remove, }; module_platform_driver(qmc_driver);