3.2.67-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Johan Hovold <johan@xxxxxxxxxx>
commit 5539b3c938d64a60cb1fc442ac3ce9263d52de0c upstream.
Memory allocated and references taken by of_gpiochip_add and
acpi_gpiochip_add were never released on errors in gpiochip_add (e.g.
failure to find free gpio range).
Fixes: 391c970c0dd1 ("of/gpio: add default of_xlate function if device
has a node pointer")
Fixes: 664e3e5ac64c ("gpio / ACPI: register to ACPI events
automatically")
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
[bwh: Backported to 3.2:
- Move call to of_gpiochip_add() into conditional section rather
than rearranging gotos and labels which are in different places
here
- There's no ACPI support]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/gpio/gpiolib.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1075,9 +1075,9 @@ int gpiochip_add(struct gpio_chip *chip)
? (1 << FLAG_IS_OUT)
: 0;
}
- }
- of_gpiochip_add(chip);
+ of_gpiochip_add(chip);
+ }
unlock:
spin_unlock_irqrestore(&gpio_lock, flags);
@@ -1086,8 +1086,10 @@ unlock:
goto fail;
status = gpiochip_export(chip);
- if (status)
+ if (status) {
+ of_gpiochip_remove(chip);
goto fail;
+ }
return 0;
fail:
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html