[PATCH 3.12 076/101] pcmcia: at91_cf: fix deferred probe from __init

From: Jiri Slaby
Date: Wed Dec 03 2014 - 06:41:12 EST


From: Johan Hovold <jhovold@xxxxxxxxx>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

commit 16a7c7cfd21cca8a260b63467e4f5c6a6d548b09 upstream.

Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
this driver might return -EPROBE_DEFER if a gpio_request fails.

Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx>
Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/pcmcia/at91_cf.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/pcmcia/at91_cf.c b/drivers/pcmcia/at91_cf.c
index b8f5acf02261..de24232c5191 100644
--- a/drivers/pcmcia/at91_cf.c
+++ b/drivers/pcmcia/at91_cf.c
@@ -245,7 +245,7 @@ static int at91_cf_dt_init(struct platform_device *pdev)
}
#endif

-static int __init at91_cf_probe(struct platform_device *pdev)
+static int at91_cf_probe(struct platform_device *pdev)
{
struct at91_cf_socket *cf;
struct at91_cf_data *board = pdev->dev.platform_data;
@@ -354,7 +354,7 @@ fail0a:
return status;
}

-static int __exit at91_cf_remove(struct platform_device *pdev)
+static int at91_cf_remove(struct platform_device *pdev)
{
struct at91_cf_socket *cf = platform_get_drvdata(pdev);

@@ -404,14 +404,13 @@ static struct platform_driver at91_cf_driver = {
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(at91_cf_dt_ids),
},
- .remove = __exit_p(at91_cf_remove),
+ .probe = at91_cf_probe,
+ .remove = at91_cf_remove,
.suspend = at91_cf_suspend,
.resume = at91_cf_resume,
};

-/*--------------------------------------------------------------------------*/
-
-module_platform_driver_probe(at91_cf_driver, at91_cf_probe);
+module_platform_driver(at91_cf_driver);

MODULE_DESCRIPTION("AT91 Compact Flash Driver");
MODULE_AUTHOR("David Brownell");
--
2.1.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/