From: Rob Clark <robdclark@gmail.com> To: Daniel Vetter <daniel@ffwll.ch> Cc: Johan Hovold <johan@kernel.org>, Sean Paul <sean@poorly.run>, David Airlie <airlied@linux.ie>, Heiko Carstens <heiko.carstens@de.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Christian Borntraeger <borntraeger@de.ibm.com>, linux-arm-msm <linux-arm-msm@vger.kernel.org>, dri-devel <dri-devel@lists.freedesktop.org>, freedreno <freedreno@lists.freedesktop.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, linux-media@vger.kernel.org, linux-s390@vger.kernel.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, stable <stable@vger.kernel.org>, Jordan Crouse <jcrouse@codeaurora.org>, Harald Freudenberger <freude@linux.ibm.com>, Mauro Carvalho Chehab <mchehab@kernel.org>, Fabien Dessenne <fabien.dessenne@st.com>, Dave Airlie <airlied@gmail.com> Subject: Re: [PATCH 1/4] drm/msm: fix memleak on release Date: Tue, 12 Nov 2019 08:32:07 -0800 [thread overview] Message-ID: <CAF6AEGvom2wZ89434VLhhgAHCk_MMCGRbxSO+DQsX=+LPOCy8A@mail.gmail.com> (raw) In-Reply-To: <20191112140155.GJ23790@phenom.ffwll.local> On Tue, Nov 12, 2019 at 6:01 AM Daniel Vetter <daniel@ffwll.ch> wrote: > > On Tue, Nov 12, 2019 at 11:40:01AM +0100, Johan Hovold wrote: > > On Wed, Oct 30, 2019 at 11:01:46AM +0100, Johan Hovold wrote: > > > On Thu, Oct 10, 2019 at 03:13:30PM +0200, Johan Hovold wrote: > > > > If a process is interrupted while accessing the "gpu" debugfs file and > > > > the drm device struct_mutex is contended, release() could return early > > > > and fail to free related resources. > > > > > > > > Note that the return value from release() is ignored. > > > > > > > > Fixes: 4f776f4511c7 ("drm/msm/gpu: Convert the GPU show function to use the GPU state") > > > > Cc: stable <stable@vger.kernel.org> # 4.18 > > > > Cc: Jordan Crouse <jcrouse@codeaurora.org> > > > > Cc: Rob Clark <robdclark@gmail.com> > > > > Signed-off-by: Johan Hovold <johan@kernel.org> > > > > --- > > > > > > Rob, Sean, > > > > > > Sending a reminder about this one, which is not yet in linux-next. > > > > > > Perhaps Daniel can pick it up otherwise? > > > > Another two weeks, another reminder. This one is still not in -next. > > Well msm is maintained in a separate tree, so the usual group maintainer > fallback for when patches are stuck doesn't apply. oh, sorry, this wasn't showing up in patchwork.. or rather it did but the non-msm related series subject made me overlook it. I've already sent a PR, but this shouldn't conflict with anything and I think it can go in via drm-misc/fixes Reviewed-by: Rob Clark <robdclark@gmail.com> > Rob, Sean, time to reconsider drm-misc for msm? I think there's some more > oddball patches that occasionally get stuck for msm ... > > Also +Dave. > -Daniel > > > > > Johan > > > > > > drivers/gpu/drm/msm/msm_debugfs.c | 6 +----- > > > > 1 file changed, 1 insertion(+), 5 deletions(-) > > > > > > > > diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c > > > > index 6be879578140..1c74381a4fc9 100644 > > > > --- a/drivers/gpu/drm/msm/msm_debugfs.c > > > > +++ b/drivers/gpu/drm/msm/msm_debugfs.c > > > > @@ -47,12 +47,8 @@ static int msm_gpu_release(struct inode *inode, struct file *file) > > > > struct msm_gpu_show_priv *show_priv = m->private; > > > > struct msm_drm_private *priv = show_priv->dev->dev_private; > > > > struct msm_gpu *gpu = priv->gpu; > > > > - int ret; > > > > - > > > > - ret = mutex_lock_interruptible(&show_priv->dev->struct_mutex); > > > > - if (ret) > > > > - return ret; > > > > > > > > + mutex_lock(&show_priv->dev->struct_mutex); > > > > gpu->funcs->gpu_state_put(show_priv->state); > > > > mutex_unlock(&show_priv->dev->struct_mutex); > > -- > Daniel Vetter > Software Engineer, Intel Corporation > http://blog.ffwll.ch
WARNING: multiple messages have this Message-ID (diff)
From: Rob Clark <robdclark@gmail.com> To: Daniel Vetter <daniel@ffwll.ch> Cc: freedreno <freedreno@lists.freedesktop.org>, Vasily Gorbik <gor@linux.ibm.com>, linux-s390@vger.kernel.org, David Airlie <airlied@linux.ie>, linux-arm-msm <linux-arm-msm@vger.kernel.org>, Heiko Carstens <heiko.carstens@de.ibm.com>, Johan Hovold <johan@kernel.org>, dri-devel <dri-devel@lists.freedesktop.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Fabien Dessenne <fabien.dessenne@st.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Harald Freudenberger <freude@linux.ibm.com>, stable <stable@vger.kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Mauro Carvalho Chehab <mchehab@kernel.org>, Sean Paul <sean@poorly.run>, linux-media@vger.kernel.org Subject: Re: [PATCH 1/4] drm/msm: fix memleak on release Date: Tue, 12 Nov 2019 08:32:07 -0800 [thread overview] Message-ID: <CAF6AEGvom2wZ89434VLhhgAHCk_MMCGRbxSO+DQsX=+LPOCy8A@mail.gmail.com> (raw) Message-ID: <20191112163207.C0S-NgP-y2hWkNtCXDG1_4Fqkippsop5anblTFj7heU@z> (raw) In-Reply-To: <20191112140155.GJ23790@phenom.ffwll.local> On Tue, Nov 12, 2019 at 6:01 AM Daniel Vetter <daniel@ffwll.ch> wrote: > > On Tue, Nov 12, 2019 at 11:40:01AM +0100, Johan Hovold wrote: > > On Wed, Oct 30, 2019 at 11:01:46AM +0100, Johan Hovold wrote: > > > On Thu, Oct 10, 2019 at 03:13:30PM +0200, Johan Hovold wrote: > > > > If a process is interrupted while accessing the "gpu" debugfs file and > > > > the drm device struct_mutex is contended, release() could return early > > > > and fail to free related resources. > > > > > > > > Note that the return value from release() is ignored. > > > > > > > > Fixes: 4f776f4511c7 ("drm/msm/gpu: Convert the GPU show function to use the GPU state") > > > > Cc: stable <stable@vger.kernel.org> # 4.18 > > > > Cc: Jordan Crouse <jcrouse@codeaurora.org> > > > > Cc: Rob Clark <robdclark@gmail.com> > > > > Signed-off-by: Johan Hovold <johan@kernel.org> > > > > --- > > > > > > Rob, Sean, > > > > > > Sending a reminder about this one, which is not yet in linux-next. > > > > > > Perhaps Daniel can pick it up otherwise? > > > > Another two weeks, another reminder. This one is still not in -next. > > Well msm is maintained in a separate tree, so the usual group maintainer > fallback for when patches are stuck doesn't apply. oh, sorry, this wasn't showing up in patchwork.. or rather it did but the non-msm related series subject made me overlook it. I've already sent a PR, but this shouldn't conflict with anything and I think it can go in via drm-misc/fixes Reviewed-by: Rob Clark <robdclark@gmail.com> > Rob, Sean, time to reconsider drm-misc for msm? I think there's some more > oddball patches that occasionally get stuck for msm ... > > Also +Dave. > -Daniel > > > > > Johan > > > > > > drivers/gpu/drm/msm/msm_debugfs.c | 6 +----- > > > > 1 file changed, 1 insertion(+), 5 deletions(-) > > > > > > > > diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c > > > > index 6be879578140..1c74381a4fc9 100644 > > > > --- a/drivers/gpu/drm/msm/msm_debugfs.c > > > > +++ b/drivers/gpu/drm/msm/msm_debugfs.c > > > > @@ -47,12 +47,8 @@ static int msm_gpu_release(struct inode *inode, struct file *file) > > > > struct msm_gpu_show_priv *show_priv = m->private; > > > > struct msm_drm_private *priv = show_priv->dev->dev_private; > > > > struct msm_gpu *gpu = priv->gpu; > > > > - int ret; > > > > - > > > > - ret = mutex_lock_interruptible(&show_priv->dev->struct_mutex); > > > > - if (ret) > > > > - return ret; > > > > > > > > + mutex_lock(&show_priv->dev->struct_mutex); > > > > gpu->funcs->gpu_state_put(show_priv->state); > > > > mutex_unlock(&show_priv->dev->struct_mutex); > > -- > Daniel Vetter > Software Engineer, Intel Corporation > http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2019-11-12 16:32 UTC|newest] Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-10-10 13:13 [PATCH 0/4] treewide: fix interrupted release Johan Hovold 2019-10-10 13:13 ` [PATCH 1/4] drm/msm: fix memleak on release Johan Hovold 2019-10-30 10:01 ` Johan Hovold 2019-10-30 10:01 ` Johan Hovold 2019-10-30 10:01 ` Johan Hovold 2019-11-12 10:40 ` Johan Hovold 2019-11-12 10:40 ` Johan Hovold 2019-11-12 14:01 ` Daniel Vetter 2019-11-12 14:01 ` Daniel Vetter 2019-11-12 16:32 ` Rob Clark [this message] 2019-11-12 16:32 ` Rob Clark 2019-11-12 20:42 ` Sean Paul 2019-11-12 20:42 ` Sean Paul 2019-11-12 20:42 ` Sean Paul 2019-10-10 13:13 ` [PATCH 2/4] media: bdisp: " Johan Hovold 2019-10-10 13:13 ` Johan Hovold 2019-10-10 14:07 ` Fabien DESSENNE 2019-10-10 13:13 ` [PATCH 3/4] media: radio: wl1273: fix interrupt masking " Johan Hovold 2019-10-10 13:13 ` [PATCH 4/4] s390/zcrypt: fix memleak at release Johan Hovold 2019-10-10 13:13 ` Johan Hovold 2019-10-14 6:18 ` Heiko Carstens 2019-10-10 13:50 ` [PATCH 0/4] treewide: fix interrupted release Daniel Vetter 2019-10-10 13:50 ` Daniel Vetter 2019-10-11 9:36 ` Johan Hovold 2019-10-11 9:36 ` Johan Hovold 2019-10-14 8:48 ` Daniel Vetter 2019-10-14 16:13 ` Johan Hovold 2019-10-15 14:07 ` Daniel Vetter 2019-10-15 14:07 ` Daniel Vetter 2019-10-21 9:55 ` Johan Hovold 2019-10-21 9:55 ` Johan Hovold
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