[PATCH] platform/surface: tabletsw: Fix __le32 integer access

[Maximilian Luz]

The sources.count field is a __le32 inside a packed struct. So use the
proper functions to access it.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Fixes: 9f794056db5b ("platform/surface: Add KIP/POS tablet-mode switch driver")
Signed-off-by: Maximilian Luz <luzmaximilian@xxxxxxxxx>
---
 drivers/platform/surface/surface_aggregator_tabletsw.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/surface/surface_aggregator_tabletsw.c b/drivers/platform/surface/surface_aggregator_tabletsw.c
index 596ca6c80681..27d95a6a7851 100644
--- a/drivers/platform/surface/surface_aggregator_tabletsw.c
+++ b/drivers/platform/surface/surface_aggregator_tabletsw.c
@@ -410,7 +410,7 @@ static int ssam_pos_get_source(struct ssam_tablet_sw *sw, u32 *source_id)
 	if (status)
 		return status;
 
-	if (sources.count == 0) {
+	if (get_unaligned_le32(&sources.count) == 0) {
 		dev_err(&sw->sdev->dev, "no posture sources found\n");
 		return -ENODEV;
 	}
@@ -422,7 +422,7 @@ static int ssam_pos_get_source(struct ssam_tablet_sw *sw, u32 *source_id)
 	 * is a device that provides multiple sources, at which point we can
 	 * then try to figure out how to handle them.
 	 */
-	WARN_ON(sources.count > 1);
+	WARN_ON(get_unaligned_le32(&sources.count) > 1);
 
 	*source_id = get_unaligned_le32(&sources.id[0]);
 	return 0;
-- 
2.37.0