From: Clément Le Goffic <clement.legoffic@foss.st.com>
Date: Tue, 15 Jul 2025 14:07:13 +0000 (+0200)
Subject: rtc: optee: fix memory leak on driver removal
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a531350d2fe58f7fc4516e555f22391dee94efd9;p=users%2Fhch%2Fmisc.git

rtc: optee: fix memory leak on driver removal

Fix a memory leak in case of driver removal.
Free the shared memory used for arguments exchanges between kernel and
OP-TEE RTC PTA.

Fixes: 81c2f059ab90 ("rtc: optee: add RTC driver for OP-TEE RTC PTA")
Signed-off-by: Clément Le Goffic <clement.legoffic@foss.st.com>
Link: https://lore.kernel.org/r/20250715-upstream-optee-rtc-v1-1-e0fdf8aae545@foss.st.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---

diff --git a/drivers/rtc/rtc-optee.c b/drivers/rtc/rtc-optee.c
index 9f8b5d4a8f6b..6b77c122fdc1 100644
--- a/drivers/rtc/rtc-optee.c
+++ b/drivers/rtc/rtc-optee.c
@@ -320,6 +320,7 @@ static int optee_rtc_remove(struct device *dev)
 {
 	struct optee_rtc *priv = dev_get_drvdata(dev);
 
+	tee_shm_free(priv->shm);
 	tee_client_close_session(priv->ctx, priv->session_id);
 	tee_client_close_context(priv->ctx);