From 213fd2270450f7b5f98803e58bc25063c249e032 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Tue, 10 Aug 2010 07:37:33 +0200
Subject: [PATCH] Staging: iio: signedness bug

i2c_smbus_read_byte_data() returns an s32 type.  We need to change
"rate" to signed for the error handling to work.

Also I changed it to propogate the error code instead of just returning
-EINVAL.  Other error codes could be -EAGAIN for example.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Reading git-format-patch failed