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[1/6] rpmsg: glink: Fix reuse intents memory leak issue

Message ID 20190918171916.4039-2-bjorn.andersson@linaro.org (mailing list archive)
State Superseded
Headers show
Series rpmsg: glink stability fixes | expand

Commit Message

Bjorn Andersson Sept. 18, 2019, 5:19 p.m. UTC
From: Arun Kumar Neelakantam <aneela@codeaurora.org>

Memory allocated for re-usable intents are not freed during channel
cleanup which causes memory leak in system.

Check and free all re-usable memory to avoid memory leak.

Fixes: 933b45da5d1d ("rpmsg: glink: Add support for TX intents")
Cc: stable@vger.kernel.org
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
Reported-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
 drivers/rpmsg/qcom_glink_native.c | 9 +++++++++
 1 file changed, 9 insertions(+)
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diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index 621f1afd4d6b..9355ce26fd98 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -241,10 +241,19 @@  static void qcom_glink_channel_release(struct kref *ref)
 	struct glink_channel *channel = container_of(ref, struct glink_channel,
+	struct glink_core_rx_intent *tmp;
 	unsigned long flags;
+	int iid;
 	spin_lock_irqsave(&channel->intent_lock, flags);
+	idr_for_each_entry(&channel->liids, tmp, iid) {
+		kfree(tmp->data);
+		kfree(tmp);
+	}
+	idr_for_each_entry(&channel->riids, tmp, iid)
+		kfree(tmp);
 	spin_unlock_irqrestore(&channel->intent_lock, flags);