Hi, Paul
I have checked aat2870-core.c build problem when x86_64 and got the
same error with you.
This error occurred since merged below change.
----------------------------------------------------------------------------------
commit da417bacc9143b934f1a480a25d0fb2bb648a820
Author: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
Date: Wed Sep 28 10:50:29 2011 +1000
x86: implement strict user copy checks for x86_64
----------------------------------------------------------------------------------
The above change is check object size and copy size for
copy_from_user() to prevent overflow.
The root cause is not matched type of size parameter for
copy_from_user() in aat2870-core.c for x86_64.
Because I just passed int type for size parameter to copy_from_user().
It has no problem for i386, but has problem for x86_64.
This is the patch for this build problem. Please review it.
mfd: aat2870: Fix build failure for x86_64
Signed-off-by: Jin Park <jinyoungp@xxxxxxxxxx>
---
drivers/mfd/aat2870-core.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index 345dc65..02c4201 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;
--
1.7.1
Thanks,
Jin Park
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