* [PATCH v4l-utils] v4l2-compliance: fix assert on only read/write-only controls
@ 2020-02-25 13:59 Philipp Zabel
0 siblings, 0 replies; only message in thread
From: Philipp Zabel @ 2020-02-25 13:59 UTC (permalink / raw)
To: linux-media; +Cc: Marian Cichy
If the driver only contains read-only (or write-only) controls,
total_vec is empty. In that case return immediately instead of
trying to access total_vec[0].
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
utils/v4l2-compliance/v4l2-test-controls.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/utils/v4l2-compliance/v4l2-test-controls.cpp b/utils/v4l2-compliance/v4l2-test-controls.cpp
index 735bc5a13c09..2a3f64e8bbec 100644
--- a/utils/v4l2-compliance/v4l2-test-controls.cpp
+++ b/utils/v4l2-compliance/v4l2-test-controls.cpp
@@ -749,6 +749,8 @@ int testExtendedControls(struct node *node)
multiple_classes = true;
total_vec.push_back(ctrl);
}
+ if (total_vec.empty())
+ return 0;
ctrls.count = total_vec.size();
ctrls.controls = &total_vec[0];
--
2.20.1
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2020-02-25 13:59 [PATCH v4l-utils] v4l2-compliance: fix assert on only read/write-only controls Philipp Zabel
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