From: dillon.minfei@gmail.com To: mchehab+huawei@kernel.org, hverkuil-cisco@xs4all.nl, a.hajda@samsung.com, mchehab@kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Dillon Min <dillon.minfei@gmail.com> Subject: [PATCH v2] media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx Date: Wed, 26 May 2021 23:18:32 +0800 [thread overview] Message-ID: <1622042312-4325-1-git-send-email-dillon.minfei@gmail.com> (raw) From: Dillon Min <dillon.minfei@gmail.com> The m2m_ctx resources was allocated by v4l2_m2m_ctx_init() in g2d_open() should be freed from g2d_release() when it's not used. Fix it Fixes: 918847341af0 ("[media] v4l: add G2D driver for s5p device family") Signed-off-by: Dillon Min <dillon.minfei@gmail.com> --- v2: move v4l2_m2m_ctx_release() up to v4l2_ctrl_handler() from Hans's suggestion, thanks. drivers/media/platform/s5p-g2d/g2d.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c index 15bcb7f6e113..1cb5eaabf340 100644 --- a/drivers/media/platform/s5p-g2d/g2d.c +++ b/drivers/media/platform/s5p-g2d/g2d.c @@ -276,6 +276,9 @@ static int g2d_release(struct file *file) struct g2d_dev *dev = video_drvdata(file); struct g2d_ctx *ctx = fh2ctx(file->private_data); + mutex_lock(&dev->mutex); + v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); + mutex_unlock(&dev->mutex); v4l2_ctrl_handler_free(&ctx->ctrl_handler); v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); -- 1.9.1
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From: dillon.minfei@gmail.com To: mchehab+huawei@kernel.org, hverkuil-cisco@xs4all.nl, a.hajda@samsung.com, mchehab@kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Dillon Min <dillon.minfei@gmail.com> Subject: [PATCH v2] media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx Date: Wed, 26 May 2021 23:18:32 +0800 [thread overview] Message-ID: <1622042312-4325-1-git-send-email-dillon.minfei@gmail.com> (raw) From: Dillon Min <dillon.minfei@gmail.com> The m2m_ctx resources was allocated by v4l2_m2m_ctx_init() in g2d_open() should be freed from g2d_release() when it's not used. Fix it Fixes: 918847341af0 ("[media] v4l: add G2D driver for s5p device family") Signed-off-by: Dillon Min <dillon.minfei@gmail.com> --- v2: move v4l2_m2m_ctx_release() up to v4l2_ctrl_handler() from Hans's suggestion, thanks. drivers/media/platform/s5p-g2d/g2d.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c index 15bcb7f6e113..1cb5eaabf340 100644 --- a/drivers/media/platform/s5p-g2d/g2d.c +++ b/drivers/media/platform/s5p-g2d/g2d.c @@ -276,6 +276,9 @@ static int g2d_release(struct file *file) struct g2d_dev *dev = video_drvdata(file); struct g2d_ctx *ctx = fh2ctx(file->private_data); + mutex_lock(&dev->mutex); + v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); + mutex_unlock(&dev->mutex); v4l2_ctrl_handler_free(&ctx->ctrl_handler); v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-05-26 15:18 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-05-26 15:18 dillon.minfei [this message] 2021-05-26 15:18 ` [PATCH v2] media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx dillon.minfei
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