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Groups > linux.kernel > #1310940 > unrolled thread

[PATCH RESEND] omap_hdq: fix usecount handling

Started byAndreas Kemnade <andreas@kemnade.info>
First post2016-01-16 13:50 +0100
Last post2016-01-19 19:20 +0100
Articles 4 — 4 participants

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  [PATCH RESEND] omap_hdq: fix usecount handling Andreas Kemnade <andreas@kemnade.info> - 2016-01-16 13:50 +0100
    Re: [PATCH RESEND] omap_hdq: fix usecount handling Vignesh R <vigneshr@ti.com> - 2016-01-19 13:00 +0100
    Re: [PATCH RESEND] omap_hdq: fix usecount handling Evgeniy Polyakov <zbr@ioremap.net> - 2016-01-19 17:50 +0100
      Re: [PATCH RESEND] omap_hdq: fix usecount handling "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org> - 2016-01-19 19:20 +0100

#1310940 — [PATCH RESEND] omap_hdq: fix usecount handling

FromAndreas Kemnade <andreas@kemnade.info>
Date2016-01-16 13:50 +0100
Subject[PATCH RESEND] omap_hdq: fix usecount handling
Message-ID<qRysP-4oX-13@gated-at.bofh.it>
hdq_usecount was set to zero after a successful read, so
omap_hdq_put could not properly free resources which leads
e.g. to increasing usecounts in lsmod output

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
---
 drivers/w1/masters/omap_hdq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 0e2f43b..a2eec97 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -618,7 +618,6 @@ static u8 omap_w1_read_byte(void *_hdq)
 
 	hdq_disable_interrupt(hdq_data, OMAP_HDQ_CTRL_STATUS,
 			      ~OMAP_HDQ_CTRL_STATUS_INTERRUPTMASK);
-	hdq_data->hdq_usecount = 0;
 
 	/* Write followed by a read, release the module */
 	if (hdq_data->init_trans) {
-- 
2.1.4

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#1312164

FromVignesh R <vigneshr@ti.com>
Date2016-01-19 13:00 +0100
Message-ID<qSD74-7hM-3@gated-at.bofh.it>
In reply to#1310940

On 01/16/2016 06:18 PM, Andreas Kemnade wrote:
> hdq_usecount was set to zero after a successful read, so
> omap_hdq_put could not properly free resources which leads
> e.g. to increasing usecounts in lsmod output
> 
> Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
> ---

Reviewed-by: Vignesh R <vigneshr@ti.com>

Thanks,

>  drivers/w1/masters/omap_hdq.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
> index 0e2f43b..a2eec97 100644
> --- a/drivers/w1/masters/omap_hdq.c
> +++ b/drivers/w1/masters/omap_hdq.c
> @@ -618,7 +618,6 @@ static u8 omap_w1_read_byte(void *_hdq)
>  
>  	hdq_disable_interrupt(hdq_data, OMAP_HDQ_CTRL_STATUS,
>  			      ~OMAP_HDQ_CTRL_STATUS_INTERRUPTMASK);
> -	hdq_data->hdq_usecount = 0;
>  
>  	/* Write followed by a read, release the module */
>  	if (hdq_data->init_trans) {
> 

-- 
Regards
Vignesh

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#1312378

FromEvgeniy Polyakov <zbr@ioremap.net>
Date2016-01-19 17:50 +0100
Message-ID<qSHDH-23d-5@gated-at.bofh.it>
In reply to#1310940
Hi Andreas

From w1 perspective this doesn't break things :)
Greg, please pull it into your tree if no one objects.

Acked-by: Evgeniy Polyakov <zbr@ioremap.net>

16.01.2016, 15:48, "Andreas Kemnade" <andreas@kemnade.info>:
> hdq_usecount was set to zero after a successful read, so
> omap_hdq_put could not properly free resources which leads
> e.g. to increasing usecounts in lsmod output
>
> Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
> ---
>  drivers/w1/masters/omap_hdq.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
> index 0e2f43b..a2eec97 100644
> --- a/drivers/w1/masters/omap_hdq.c
> +++ b/drivers/w1/masters/omap_hdq.c
> @@ -618,7 +618,6 @@ static u8 omap_w1_read_byte(void *_hdq)
>
>          hdq_disable_interrupt(hdq_data, OMAP_HDQ_CTRL_STATUS,
>                                ~OMAP_HDQ_CTRL_STATUS_INTERRUPTMASK);
> - hdq_data->hdq_usecount = 0;
>
>          /* Write followed by a read, release the module */
>          if (hdq_data->init_trans) {
> --
> 2.1.4

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#1312423

From"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>
Date2016-01-19 19:20 +0100
Message-ID<qSJ2O-36W-11@gated-at.bofh.it>
In reply to#1312378
On Tue, Jan 19, 2016 at 07:38:28PM +0300, Evgeniy Polyakov wrote:
> Hi Andreas
> 
> >From w1 perspective this doesn't break things :)
> Greg, please pull it into your tree if no one objects.
> 
> Acked-by: Evgeniy Polyakov <zbr@ioremap.net>

Thanks, will do after 4.5-rc1 is out.

greg k-h

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