Merge branch 'field-zeroing' into for-linus
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 7c0fab1e..e8387cb 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -872,8 +872,13 @@
unsigned count = field->report_count;
unsigned offset = field->report_offset;
unsigned size = field->report_size;
+ unsigned bitsused = offset + count * size;
unsigned n;
+ /* make sure the unused bits in the last byte are zeros */
+ if (count > 0 && size > 0 && (bitsused % 8) != 0)
+ data[(bitsused-1)/8] &= (1 << (bitsused % 8)) - 1;
+
for (n = 0; n < count; n++) {
if (field->logical_minimum < 0) /* signed values */
implement(data, offset + n * size, size, s32ton(field->value[n], size));