This is a note to let you know that I've just added the patch titled iio: industrialio-buffer: Fix iio_buffer_poll return value 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: iio-industrialio-buffer-fix-iio_buffer_poll-return-value.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 <stable@xxxxxxxxxxxxxxx> know about it. >From 1bdc0293901cbea23c6dc29432e81919d4719844 Mon Sep 17 00:00:00 2001 From: Cristina Opriceana <cristina.opriceana@xxxxxxxxx> Date: Mon, 3 Aug 2015 13:37:40 +0300 Subject: iio: industrialio-buffer: Fix iio_buffer_poll return value From: Cristina Opriceana <cristina.opriceana@xxxxxxxxx> commit 1bdc0293901cbea23c6dc29432e81919d4719844 upstream. Change return value to 0 if no device is bound since unsigned int cannot support negative error codes. Fixes: f18e7a068 ("iio: Return -ENODEV for file operations if the device has been unregistered") Signed-off-by: Cristina Opriceana <cristina.opriceana@xxxxxxxxx> Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/iio/industrialio-buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -151,7 +151,7 @@ unsigned int iio_buffer_poll(struct file struct iio_buffer *rb = indio_dev->buffer; if (!indio_dev->info) - return -ENODEV; + return 0; poll_wait(filp, &rb->pollq, wait); if (iio_buffer_ready(indio_dev, rb, rb->watermark, 0)) Patches currently in stable-queue which might be from cristina.opriceana@xxxxxxxxx are queue-4.2/iio-event-remove-negative-error-code-from-iio_event_poll.patch queue-4.2/iio-industrialio-buffer-fix-iio_buffer_poll-return-value.patch -- 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