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| author |   Ingo Molnar <mingo@kernel.org> | 2019-06-17 12:06:34 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-06-17 12:06:34 +0200 |
| commit | 410df0c5748f6c5a53847d2acb163dc7cd8b6c51 (patch) | |
| tree | 0c0f547f90a73ec6d30851f93720e0eb24f353eb /drivers/hid/hid-multitouch.c | |
| parent | Documentation/atomic_t.txt: Clarify pure non-rmw usage (diff) | |
| parent | Linux 5.2-rc5 (diff) | |
| download | linux-dev-410df0c5748f6c5a53847d2acb163dc7cd8b6c51.tar.xz linux-dev-410df0c5748f6c5a53847d2acb163dc7cd8b6c51.zip | |
Merge tag 'v5.2-rc5' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/hid/hid-multitouch.c')
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index c34e972f6296..5df5dd56ecc8 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -637,6 +637,13 @@ static void mt_store_field(struct hid_device *hdev, if (*target != DEFAULT_TRUE && *target != DEFAULT_FALSE && *target != DEFAULT_ZERO) { + if (usage->contactid == DEFAULT_ZERO || + usage->x == DEFAULT_ZERO || + usage->y == DEFAULT_ZERO) { + hid_dbg(hdev, + "ignoring duplicate usage on incomplete"); + return; + } usage = mt_allocate_usage(hdev, application); if (!usage) return; |