Patch "serial: atmel: fix error path of probe function" has been added to the 4.2-stable tree

This is a note to let you know that I've just added the patch titled

serial: atmel: fix error path of probe function

to the 4.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
serial-atmel-fix-error-path-of-probe-function.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <[email protected]>
Date: Wed, 23 Sep 2015 08:57:40 +0200
Subject: serial: atmel: fix error path of probe function
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From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <[email protected]>

commit 8f1bd8f2ad2358d6a88c115481ff3e69817d1bde upstream.

If atmel_init_gpios fails the port has already been marked as busy (in line 2629), so this must be undone in the error path.

This bug was introduced because I created the patch that finally became 722ccf416ac2 ("serial: atmel: fix error handling when mctrl_gpio_init fails") on top of 3.19 which didn't have commit 6fbb9bdf0f3f ("tty/serial: at91: fix error handling in atmel_serial_probe()") yet.

---
 drivers/tty/serial/atmel_serial.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -2641,7 +2641,7 @@ static int atmel_serial_probe(struct pla
 	ret = atmel_init_gpios(port, &pdev->dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to initialize GPIOs.");
-		goto err;
+		goto err_clear_bit;
 	}
 
 	ret = atmel_init_port(port, pdev);

Patches currently in stable-queue which might be from [email protected] are

queue-4.2/serial-atmel-fix-error-path-of-probe-function.patch