Currently calling list_del on smd subdev remove path results in
null pointer dereference on glink only platforms. Fix this by
adding safety checks in glink/smd subdev remove paths.
Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx>
---
drivers/remoteproc/qcom_common.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c
index 00602499713f..a0cd6a50913f 100644
--- a/drivers/remoteproc/qcom_common.c
+++ b/drivers/remoteproc/qcom_common.c
@@ -74,6 +74,9 @@ EXPORT_SYMBOL_GPL(qcom_add_glink_subdev);
*/
void qcom_remove_glink_subdev(struct rproc *rproc, struct qcom_rproc_glink *glink)
{
+ if (!glink->node)
+ return;
+
rproc_remove_subdev(rproc, &glink->subdev);
of_node_put(glink->node);
}
@@ -121,6 +124,9 @@ EXPORT_SYMBOL_GPL(qcom_add_smd_subdev);
*/
void qcom_remove_smd_subdev(struct rproc *rproc, struct qcom_rproc_subdev *smd)
{
+ if (!smd->node)
+ return;
+
rproc_remove_subdev(rproc, &smd->subdev);
of_node_put(smd->node);
}
--
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