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Subject[PATCH] platform/surface: tabletsw: Fix __le32 integer access
Date
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@intel.com>
Fixes: 9f794056db5b ("platform/surface: Add KIP/POS tablet-mode switch driver")
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
---
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
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