From: Jin Park <jinyoungp@nvidia.com>
Date: Tue, 4 Oct 2011 10:35:07 +0000 (+0200)
Subject: mfd: Fix aat2870 build failure for x86_64
X-Git-Tag: next-20111025~40^2~21
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c38d66ac924e84ea3606c408b117157415df07b3;p=karo-tx-linux.git

mfd: Fix aat2870 build failure for x86_64

Without this fix, we get:

error: call to ‘copy_from_user_overflow’ declared with attribute error:
copy_from_user() buffer size is not provably correct
make[3]: *** [drivers/mfd/aat2870-core.o] Error 1

And this was triggered by commit da417bacc9143b934f1a480a25d0fb2bb648a820

Signed-off-by: Jin Park <jinyoungp@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index 345dc658ef06..02c42015ba51 100644
--- a/drivers/mfd/aat2870-core.c
+++ b/drivers/mfd/aat2870-core.c
@@ -295,7 +295,7 @@ static ssize_t aat2870_reg_write_file(struct file *file,
 {
 	struct aat2870_data *aat2870 = file->private_data;
 	char buf[32];
-	int buf_size;
+	ssize_t buf_size;
 	char *start = buf;
 	unsigned long addr, val;
 	int ret;