* [PATCH] media: i2c: ov5648: Free V4L2 fwnode data on unbind
@ 2022-09-19 2:32 Rafael Mendonca
2022-09-19 14:32 ` Tommaso Merciai
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Rafael Mendonca @ 2022-09-19 2:32 UTC (permalink / raw)
To: Mauro Carvalho Chehab, Paul Kocialkowski, Sakari Ailus
Cc: Rafael Mendonca, Mauro Carvalho Chehab, linux-media, linux-kernel
The V4L2 fwnode data structure doesn't get freed on unbind, which leads to
a memleak.
Fixes: e43ccb0a045f ("media: i2c: Add support for the OV5648 image sensor")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
---
drivers/media/i2c/ov5648.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/i2c/ov5648.c b/drivers/media/i2c/ov5648.c
index dfcd33e9ee13..95850f06112b 100644
--- a/drivers/media/i2c/ov5648.c
+++ b/drivers/media/i2c/ov5648.c
@@ -2598,6 +2598,8 @@ static int ov5648_remove(struct i2c_client *client)
mutex_destroy(&sensor->mutex);
media_entity_cleanup(&subdev->entity);
+ v4l2_fwnode_endpoint_free(&sensor->endpoint);
+
return 0;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] media: i2c: ov5648: Free V4L2 fwnode data on unbind
2022-09-19 2:32 [PATCH] media: i2c: ov5648: Free V4L2 fwnode data on unbind Rafael Mendonca
@ 2022-09-19 14:32 ` Tommaso Merciai
2022-09-20 12:46 ` Jacopo Mondi
2022-09-20 13:25 ` Paul Kocialkowski
2 siblings, 0 replies; 6+ messages in thread
From: Tommaso Merciai @ 2022-09-19 14:32 UTC (permalink / raw)
To: Rafael Mendonca
Cc: Mauro Carvalho Chehab, Paul Kocialkowski, Sakari Ailus,
Mauro Carvalho Chehab, linux-media, linux-kernel
Hi Rafael,
On Sun, Sep 18, 2022 at 11:32:46PM -0300, Rafael Mendonca wrote:
> The V4L2 fwnode data structure doesn't get freed on unbind, which leads to
> a memleak.
>
> Fixes: e43ccb0a045f ("media: i2c: Add support for the OV5648 image sensor")
> Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
> ---
> drivers/media/i2c/ov5648.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/media/i2c/ov5648.c b/drivers/media/i2c/ov5648.c
> index dfcd33e9ee13..95850f06112b 100644
> --- a/drivers/media/i2c/ov5648.c
> +++ b/drivers/media/i2c/ov5648.c
> @@ -2598,6 +2598,8 @@ static int ov5648_remove(struct i2c_client *client)
> mutex_destroy(&sensor->mutex);
> media_entity_cleanup(&subdev->entity);
>
> + v4l2_fwnode_endpoint_free(&sensor->endpoint);
> +
> return 0;
> }
>
> --
> 2.34.1
>
Looks good to me.
Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Regards,
Tommaso
--
Tommaso Merciai
Embedded Linux Engineer
tommaso.merciai@amarulasolutions.com
__________________________________
Amarula Solutions SRL
Via Le Canevare 30, 31100 Treviso, Veneto, IT
T. +39 042 243 5310
info@amarulasolutions.com
www.amarulasolutions.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] media: i2c: ov5648: Free V4L2 fwnode data on unbind
2022-09-19 2:32 [PATCH] media: i2c: ov5648: Free V4L2 fwnode data on unbind Rafael Mendonca
2022-09-19 14:32 ` Tommaso Merciai
@ 2022-09-20 12:46 ` Jacopo Mondi
2022-09-20 13:25 ` Paul Kocialkowski
2 siblings, 0 replies; 6+ messages in thread
From: Jacopo Mondi @ 2022-09-20 12:46 UTC (permalink / raw)
To: Rafael Mendonca
Cc: Mauro Carvalho Chehab, Paul Kocialkowski, Sakari Ailus,
Mauro Carvalho Chehab, linux-media, linux-kernel
Hi Rafael
On Sun, Sep 18, 2022 at 11:32:46PM -0300, Rafael Mendonca wrote:
> The V4L2 fwnode data structure doesn't get freed on unbind, which leads to
> a memleak.
>
> Fixes: e43ccb0a045f ("media: i2c: Add support for the OV5648 image sensor")
> Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
> ---
> drivers/media/i2c/ov5648.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/media/i2c/ov5648.c b/drivers/media/i2c/ov5648.c
> index dfcd33e9ee13..95850f06112b 100644
> --- a/drivers/media/i2c/ov5648.c
> +++ b/drivers/media/i2c/ov5648.c
> @@ -2598,6 +2598,8 @@ static int ov5648_remove(struct i2c_client *client)
> mutex_destroy(&sensor->mutex);
> media_entity_cleanup(&subdev->entity);
>
> + v4l2_fwnode_endpoint_free(&sensor->endpoint);
> +
Nit: all the other function calls are in a single block, this one
doesn't deserve an empty line before it.
Nit apart, the patch is a good fix.
> return 0;
> }
>
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] media: i2c: ov5648: Free V4L2 fwnode data on unbind
2022-09-19 2:32 [PATCH] media: i2c: ov5648: Free V4L2 fwnode data on unbind Rafael Mendonca
2022-09-19 14:32 ` Tommaso Merciai
2022-09-20 12:46 ` Jacopo Mondi
@ 2022-09-20 13:25 ` Paul Kocialkowski
2022-09-20 13:58 ` Rafael Mendonca
2 siblings, 1 reply; 6+ messages in thread
From: Paul Kocialkowski @ 2022-09-20 13:25 UTC (permalink / raw)
To: Rafael Mendonca
Cc: Mauro Carvalho Chehab, Sakari Ailus, Mauro Carvalho Chehab,
linux-media, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1175 bytes --]
Hi Rafael,
On Sun 18 Sep 22, 23:32, Rafael Mendonca wrote:
> The V4L2 fwnode data structure doesn't get freed on unbind, which leads to
> a memleak.
Thanks for this patch, good catch!
I agree with Jacopo, you shouldn't add a newline before the call.
Feel free to send a v2 with that fixed and include my:
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cheers,
Paul
> Fixes: e43ccb0a045f ("media: i2c: Add support for the OV5648 image sensor")
> Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
> ---
> drivers/media/i2c/ov5648.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/media/i2c/ov5648.c b/drivers/media/i2c/ov5648.c
> index dfcd33e9ee13..95850f06112b 100644
> --- a/drivers/media/i2c/ov5648.c
> +++ b/drivers/media/i2c/ov5648.c
> @@ -2598,6 +2598,8 @@ static int ov5648_remove(struct i2c_client *client)
> mutex_destroy(&sensor->mutex);
> media_entity_cleanup(&subdev->entity);
>
> + v4l2_fwnode_endpoint_free(&sensor->endpoint);
> +
> return 0;
> }
>
> --
> 2.34.1
>
--
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] media: i2c: ov5648: Free V4L2 fwnode data on unbind
2022-09-20 13:25 ` Paul Kocialkowski
@ 2022-09-20 13:58 ` Rafael Mendonca
2022-09-20 14:07 ` Paul Kocialkowski
0 siblings, 1 reply; 6+ messages in thread
From: Rafael Mendonca @ 2022-09-20 13:58 UTC (permalink / raw)
To: Paul Kocialkowski
Cc: Mauro Carvalho Chehab, Sakari Ailus, Mauro Carvalho Chehab,
linux-media, linux-kernel
On Tue, Sep 20, 2022 at 03:25:20PM +0200, Paul Kocialkowski wrote:
> Hi Rafael,
>
> On Sun 18 Sep 22, 23:32, Rafael Mendonca wrote:
> > The V4L2 fwnode data structure doesn't get freed on unbind, which leads to
> > a memleak.
>
> Thanks for this patch, good catch!
>
> I agree with Jacopo, you shouldn't add a newline before the call.
Thanks for the review, I'll send a v2. As the code for the ov5648 is
similar to the ov8865, and in the 8865 there is this blank line before
the v4l2_fwnode_endpoint_free() call, I thought it might be good to keep
the same style here, that's why this empty line ended up appearing here.
> Feel free to send a v2 with that fixed and include my:
>
> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
>
> Cheers,
>
> Paul
>
> > Fixes: e43ccb0a045f ("media: i2c: Add support for the OV5648 image sensor")
> > Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
> > ---
> > drivers/media/i2c/ov5648.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/drivers/media/i2c/ov5648.c b/drivers/media/i2c/ov5648.c
> > index dfcd33e9ee13..95850f06112b 100644
> > --- a/drivers/media/i2c/ov5648.c
> > +++ b/drivers/media/i2c/ov5648.c
> > @@ -2598,6 +2598,8 @@ static int ov5648_remove(struct i2c_client *client)
> > mutex_destroy(&sensor->mutex);
> > media_entity_cleanup(&subdev->entity);
> >
> > + v4l2_fwnode_endpoint_free(&sensor->endpoint);
> > +
> > return 0;
> > }
> >
> > --
> > 2.34.1
> >
>
> --
> Paul Kocialkowski, Bootlin
> Embedded Linux and kernel engineering
> https://bootlin.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] media: i2c: ov5648: Free V4L2 fwnode data on unbind
2022-09-20 13:58 ` Rafael Mendonca
@ 2022-09-20 14:07 ` Paul Kocialkowski
0 siblings, 0 replies; 6+ messages in thread
From: Paul Kocialkowski @ 2022-09-20 14:07 UTC (permalink / raw)
To: Rafael Mendonca
Cc: Mauro Carvalho Chehab, Sakari Ailus, Mauro Carvalho Chehab,
linux-media, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 2033 bytes --]
Hi Rafael,
On Tue 20 Sep 22, 10:58, Rafael Mendonca wrote:
> On Tue, Sep 20, 2022 at 03:25:20PM +0200, Paul Kocialkowski wrote:
> > Hi Rafael,
> >
> > On Sun 18 Sep 22, 23:32, Rafael Mendonca wrote:
> > > The V4L2 fwnode data structure doesn't get freed on unbind, which leads to
> > > a memleak.
> >
> > Thanks for this patch, good catch!
> >
> > I agree with Jacopo, you shouldn't add a newline before the call.
>
> Thanks for the review, I'll send a v2. As the code for the ov5648 is
> similar to the ov8865, and in the 8865 there is this blank line before
> the v4l2_fwnode_endpoint_free() call, I thought it might be good to keep
> the same style here, that's why this empty line ended up appearing here.
Understood! I'd be tempted to make a cosmetic fix for 8865 but will probably
wait to group it with functional changes.
Cheers,
Paul
> > Feel free to send a v2 with that fixed and include my:
> >
> > Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> >
> > Cheers,
> >
> > Paul
> >
> > > Fixes: e43ccb0a045f ("media: i2c: Add support for the OV5648 image sensor")
> > > Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
> > > ---
> > > drivers/media/i2c/ov5648.c | 2 ++
> > > 1 file changed, 2 insertions(+)
> > >
> > > diff --git a/drivers/media/i2c/ov5648.c b/drivers/media/i2c/ov5648.c
> > > index dfcd33e9ee13..95850f06112b 100644
> > > --- a/drivers/media/i2c/ov5648.c
> > > +++ b/drivers/media/i2c/ov5648.c
> > > @@ -2598,6 +2598,8 @@ static int ov5648_remove(struct i2c_client *client)
> > > mutex_destroy(&sensor->mutex);
> > > media_entity_cleanup(&subdev->entity);
> > >
> > > + v4l2_fwnode_endpoint_free(&sensor->endpoint);
> > > +
> > > return 0;
> > > }
> > >
> > > --
> > > 2.34.1
> > >
> >
> > --
> > Paul Kocialkowski, Bootlin
> > Embedded Linux and kernel engineering
> > https://bootlin.com
>
>
--
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-09-20 14:07 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-09-19 2:32 [PATCH] media: i2c: ov5648: Free V4L2 fwnode data on unbind Rafael Mendonca
2022-09-19 14:32 ` Tommaso Merciai
2022-09-20 12:46 ` Jacopo Mondi
2022-09-20 13:25 ` Paul Kocialkowski
2022-09-20 13:58 ` Rafael Mendonca
2022-09-20 14:07 ` Paul Kocialkowski
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