| From | Kamal Mostafa <> | Subject | [PATCH 3.13.y-ckt 20/85] iio: industrialio-buffer: Fix iio_buffer_poll return value | Date | Tue, 20 Oct 2015 14:34:36 -0700 |
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3.13.11-ckt28 -stable review patch. If anyone has any objections, please let me know.
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From: Cristina Opriceana <cristina.opriceana@gmail.com>
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@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/iio/industrialio-buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index d660c89..1d05805 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -67,7 +67,7 @@ unsigned int iio_buffer_poll(struct file *filp, struct iio_buffer *rb = indio_dev->buffer; if (!indio_dev->info) - return -ENODEV; + return 0; poll_wait(filp, &rb->pollq, wait); if (rb->stufftoread) -- 1.9.1
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