gpiolib: fix request related issue

commit 7460db567bbca76bf087d1694d792a1a96bdaa26 upstream.

Fix request-already-requested handling in gpio_request().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 82020abc329efab1d95f56a1d67e71db2122dc1b..a4424c8b90850c7db4ef6820f58fb25a8196bc4d 100644 (file)
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -789,6 +789,7 @@ int gpio_request(unsigned gpio, const char *label)
        } else {
                status = -EBUSY;
                module_put(chip->owner);
+               goto done;
        }
 
        if (chip->request) {