| Message ID | 20201119161604.2633521-3-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 7795d4757502d8615bf092d628d424300bb31e5f |
| Headers | show |
| Series | [v2,1/3] spi: fix resource leak for drivers without .remove callback | expand |
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index e8c0a000ee19..6b7c19bf7715 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -408,13 +408,20 @@ static int spi_probe(struct device *dev) static int spi_remove(struct device *dev) { const struct spi_driver *sdrv = to_spi_driver(dev->driver); - int ret = 0; - if (sdrv->remove) + if (sdrv->remove) { + int ret; + ret = sdrv->remove(to_spi_device(dev)); + if (ret) + dev_warn(dev, + "Failed to unbind driver (%pe), ignoring\n", + ERR_PTR(ret)); + } + dev_pm_domain_detach(dev, true); - return ret; + return 0; } static void spi_shutdown(struct device *dev)
The driver core ignores the return value of struct device_driver::remove (because in general there is nothing that can be done about that). So add a warning when an spi driver returns an error. This simplifies the quest to make struct device_driver::remove return void. A consequent change would be to make struct spi_driver::remove return void, but I'm keeping this quest for later (or someone else). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/spi/spi.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)