From: Eddie Lin <eddie.lin@oss.qualcomm.com>
Date: Fri, 24 Jul 2026 22:33:41 +0000 (+0100)
Subject: misc: fastrpc: fix memory leak in fastrpc_channel_ctx_free
X-Git-Tag: v7.2-rc7~8^2~10
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=2fae94ee14f7fea11d3f95e10383a87c01d21518;p=thirdparty%2Flinux.git

misc: fastrpc: fix memory leak in fastrpc_channel_ctx_free

The 'ctx_idr' is initialized but never destroyed when
the channel context is freed, leading to a memory leak.
Add idr_destroy() to properly clean up the IDR resources.

Fixes: f6f9279f2bf0 ("misc: fastrpc: Add Qualcomm fastrpc basic driver model")
Cc: stable@vger.kernel.org
Signed-off-by: Eddie Lin <eddie.lin@oss.qualcomm.com>
Reviewed-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>
Signed-off-by: Srinivas Kandagatla <srini@kernel.org>
Link: https://patch.msgid.link/20260724223342.629168-6-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index f8cbe30c5d5c..eb6c2a78d3c7 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -492,6 +492,7 @@ static void fastrpc_channel_ctx_free(struct kref *ref)
 
 	cctx = container_of(ref, struct fastrpc_channel_ctx, refcount);
 
+	idr_destroy(&cctx->ctx_idr);
 	kfree(cctx);
 }