On 19/02/2026 2:46 pm, Jie Gan wrote:
Acquiring an uninitialized raw_spin_lock is invalid and may trigger unexpected behavior or spin_bug.
Fixes: f78d206f3d73 ("Coresight: Add Coresight TMC Control Unit driver") Signed-off-by: Jie Gan jie.gan@oss.qualcomm.com
drivers/hwtracing/coresight/coresight-ctcu-core.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/hwtracing/coresight/coresight-ctcu-core.c b/drivers/hwtracing/coresight/coresight-ctcu-core.c index abed15eb72b4..a505b90c09e3 100644 --- a/drivers/hwtracing/coresight/coresight-ctcu-core.c +++ b/drivers/hwtracing/coresight/coresight-ctcu-core.c @@ -228,6 +228,7 @@ static int ctcu_probe(struct platform_device *pdev) desc.dev = dev; desc.ops = &ctcu_ops; desc.access = CSDEV_ACCESS_IOMEM(base);
- raw_spin_lock_init(&drvdata->spin_lock);
drvdata->csdev = coresight_register(&desc); if (IS_ERR(drvdata->csdev))
base-commit: 44982d352c33767cd8d19f8044e7e1161a587ff7 change-id: 20260219-fix-spin-lock-issue-c563c32c5441
Best regards,
Reviewed-by: James Clark james.clark@linaro.org
I checked the other ones and they're all initialized, this was the only missing one.
-
James Clark