mei: revamp mei_data2slots

1. Move the mei_data2slots to mei_dev.h as it will be used
by the all supported HW.
2. Change return value from u8 to u32 to catch possible overflows
3. Eliminate computing the slots number twice in the same function

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 45ea7185c003..d21e5a761f2c 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -295,10 +295,11 @@ static int mei_me_write_message(struct mei_device *dev,
                         unsigned char *buf)
 {
         struct mei_me_hw *hw = to_me_hw(dev);
-        unsigned long rem, dw_cnt;
+        unsigned long rem;
         unsigned long length = header->length;
         u32 *reg_buf = (u32 *)buf;
         u32 hcsr;
+        u32 dw_cnt;
         int i;
         int empty_slots;