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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Dafna Hirschfeld <dafna3@gmail.com>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
	Minh Yuan <yuanmingbuaa@gmail.com>
Subject: [PATCH 4.19 01/12] media: vicodec: upon release, call m2m release before freeing ctrl handler
Date: Fri, 29 Apr 2022 12:41:18 +0200	[thread overview]
Message-ID: <20220429104048.503287650@linuxfoundation.org> (raw)
In-Reply-To: <20220429104048.459089941@linuxfoundation.org>

From: Dafna Hirschfeld <dafna3@gmail.com>

commit 4d10452cd1ed619d95fde81cef837069f4c754cd upstream.

'v4l2_m2m_ctx_release' calls request complete
so it should be called before 'v4l2_ctrl_handler_free'.

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Minh Yuan <yuanmingbuaa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/platform/vicodec/vicodec-core.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/media/platform/vicodec/vicodec-core.c
+++ b/drivers/media/platform/vicodec/vicodec-core.c
@@ -1297,12 +1297,12 @@ static int vicodec_release(struct file *
 	struct video_device *vfd = video_devdata(file);
 	struct vicodec_ctx *ctx = file2ctx(file);
 
-	v4l2_fh_del(&ctx->fh);
-	v4l2_fh_exit(&ctx->fh);
-	v4l2_ctrl_handler_free(&ctx->hdl);
 	mutex_lock(vfd->lock);
 	v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
 	mutex_unlock(vfd->lock);
+	v4l2_fh_del(&ctx->fh);
+	v4l2_fh_exit(&ctx->fh);
+	v4l2_ctrl_handler_free(&ctx->hdl);
 	kfree(ctx);
 
 	return 0;



  reply	other threads:[~2022-04-29 10:41 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-29 10:41 [PATCH 4.19 00/12] 4.19.241-rc1 review Greg Kroah-Hartman
2022-04-29 10:41 ` Greg Kroah-Hartman [this message]
2022-04-29 10:41 ` [PATCH 4.19 02/12] floppy: disable FDRAWCMD by default Greg Kroah-Hartman
2022-04-29 10:41 ` [PATCH 4.19 03/12] hamradio: defer 6pack kfree after unregister_netdev Greg Kroah-Hartman
2022-04-29 10:41 ` [PATCH 4.19 04/12] hamradio: remove needs_free_netdev to avoid UAF Greg Kroah-Hartman
2022-04-29 10:41 ` [PATCH 4.19 05/12] net/sched: cls_u32: fix netns refcount changes in u32_change() Greg Kroah-Hartman
2022-04-29 10:41 ` [PATCH 4.19 06/12] powerpc/64/interrupt: Temporarily save PPR on stack to fix register corruption due to SLB miss Greg Kroah-Hartman
2022-04-29 10:41 ` [PATCH 4.19 07/12] powerpc/64s: Unmerge EX_LR and EX_DAR Greg Kroah-Hartman
2022-04-29 10:41 ` [PATCH 4.19 08/12] Revert "ia64: kprobes: Fix to pass correct trampoline address to the handler" Greg Kroah-Hartman
2022-04-29 10:41 ` [PATCH 4.19 09/12] Revert "ia64: kprobes: Use generic kretprobe trampoline handler" Greg Kroah-Hartman
2022-04-29 10:41 ` [PATCH 4.19 10/12] ia64: kprobes: Fix to pass correct trampoline address to the handler Greg Kroah-Hartman
2022-04-29 10:41 ` [PATCH 4.19 11/12] Revert "net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link" Greg Kroah-Hartman
2022-04-29 10:41 ` [PATCH 4.19 12/12] lightnvm: disable the subsystem Greg Kroah-Hartman
2022-04-29 17:15 ` [PATCH 4.19 00/12] 4.19.241-rc1 review Jon Hunter
2022-04-29 18:36 ` Shuah Khan
2022-04-29 23:48 ` Guenter Roeck
2022-04-30  5:55 ` Naresh Kamboju
2022-04-30 10:18 ` Sudip Mukherjee
2022-05-03 10:41 ` Pavel Machek
2022-05-03 14:16 ` Guenter Roeck
2022-05-03 14:25   ` Greg Kroah-Hartman
2022-05-03 16:41     ` Guenter Roeck
2022-05-09  8:04       ` Greg Kroah-Hartman

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