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Groups > linux.kernel > #1263794 > unrolled thread

[PATCH] DWC Ethernet QoS: Delete an unnecessary check before the function call "of_node_put"

Started bySF Markus Elfring <elfring@users.sourceforge.net>
First post2015-11-06 08:20 +0100
Last post2015-11-07 19:20 +0100
Articles 6 — 2 participants

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  [PATCH] DWC Ethernet QoS: Delete an unnecessary check before the  function call "of_node_put" SF Markus Elfring <elfring@users.sourceforge.net> - 2015-11-06 08:20 +0100
    Re: [PATCH] DWC Ethernet QoS: Delete an unnecessary check before  the function call "of_node_put" David Miller <davem@davemloft.net> - 2015-11-07 05:40 +0100
      [PATCH] ethernet-synopsys: Delete an unnecessary check before  of_node_put() SF Markus Elfring <elfring@users.sourceforge.net> - 2015-11-07 15:20 +0100
        Re: [PATCH] ethernet-synopsys: Delete an unnecessary check before  of_node_put() David Miller <davem@davemloft.net> - 2015-11-07 16:00 +0100
      [PATCH] dwc_eth_qos: Delete an unnecessary check before the function  call "of_node_put" SF Markus Elfring <elfring@users.sourceforge.net> - 2015-11-07 16:40 +0100
        Re: [PATCH] dwc_eth_qos: Delete an unnecessary check before the  function call "of_node_put" David Miller <davem@davemloft.net> - 2015-11-07 19:20 +0100

#1263794 — [PATCH] DWC Ethernet QoS: Delete an unnecessary check before the function call "of_node_put"

FromSF Markus Elfring <elfring@users.sourceforge.net>
Date2015-11-06 08:20 +0100
Subject[PATCH] DWC Ethernet QoS: Delete an unnecessary check before the function call "of_node_put"
Message-ID<qrJtv-1pc-3@gated-at.bofh.it>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 6 Nov 2015 08:00:22 +0100

The of_node_put() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/net/ethernet/synopsys/dwc_eth_qos.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/synopsys/dwc_eth_qos.c b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
index 85b3326..9066d7a 100644
--- a/drivers/net/ethernet/synopsys/dwc_eth_qos.c
+++ b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
@@ -2970,8 +2970,7 @@ err_out_unregister_netdev:
 err_out_clk_dis_aper:
 	clk_disable_unprepare(lp->apb_pclk);
 err_out_free_netdev:
-	if (lp->phy_node)
-		of_node_put(lp->phy_node);
+	of_node_put(lp->phy_node);
 	free_netdev(ndev);
 	platform_set_drvdata(pdev, NULL);
 	return ret;
-- 
2.6.2

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#1264731 — Re: [PATCH] DWC Ethernet QoS: Delete an unnecessary check before the function call "of_node_put"

FromDavid Miller <davem@davemloft.net>
Date2015-11-07 05:40 +0100
SubjectRe: [PATCH] DWC Ethernet QoS: Delete an unnecessary check before the function call "of_node_put"
Message-ID<qs3se-5TG-7@gated-at.bofh.it>
In reply to#1263794
From: SF Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 6 Nov 2015 08:15:30 +0100

> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Fri, 6 Nov 2015 08:00:22 +0100
> 
> The of_node_put() function tests whether its argument is NULL and then
> returns immediately. Thus the test around the call is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

Please resubmit this with a more appropriate Subject line.

The subsystem prefix should be all lower-case and typically
indicate the most specific subsystem or area being changed.

In this case it's a driver, therefore simply use the driver
name "dwc_eth_qos: ".
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#1264844 — [PATCH] ethernet-synopsys: Delete an unnecessary check before of_node_put()

FromSF Markus Elfring <elfring@users.sourceforge.net>
Date2015-11-07 15:20 +0100
Subject[PATCH] ethernet-synopsys: Delete an unnecessary check before of_node_put()
Message-ID<qscvx-3nb-19@gated-at.bofh.it>
In reply to#1264731
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 7 Nov 2015 15:10:29 +0100

The of_node_put() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/net/ethernet/synopsys/dwc_eth_qos.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/synopsys/dwc_eth_qos.c b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
index 85b3326..9066d7a 100644
--- a/drivers/net/ethernet/synopsys/dwc_eth_qos.c
+++ b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
@@ -2970,8 +2970,7 @@ err_out_unregister_netdev:
 err_out_clk_dis_aper:
 	clk_disable_unprepare(lp->apb_pclk);
 err_out_free_netdev:
-	if (lp->phy_node)
-		of_node_put(lp->phy_node);
+	of_node_put(lp->phy_node);
 	free_netdev(ndev);
 	platform_set_drvdata(pdev, NULL);
 	return ret;
-- 
2.6.2

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#1264855 — Re: [PATCH] ethernet-synopsys: Delete an unnecessary check before of_node_put()

FromDavid Miller <davem@davemloft.net>
Date2015-11-07 16:00 +0100
SubjectRe: [PATCH] ethernet-synopsys: Delete an unnecessary check before of_node_put()
Message-ID<qsd8e-3Cy-1@gated-at.bofh.it>
In reply to#1264844
From: SF Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 7 Nov 2015 15:15:24 +0100

> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sat, 7 Nov 2015 15:10:29 +0100
> 
> The of_node_put() function tests whether its argument is NULL and then
> returns immediately. Thus the test around the call is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

As I requested of you last night, please phrase the subsystem
prefix of your Subject lines more correctly.

Just use the driver's name, in lower case, as one single word,
which in this case would be "dwc_eth_qos: ".

I'm telling you exactly what to use in the Subject line, there
is no ambiguity or confusion on what you need to do for me to
accept this patch.

Thanks.
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#1264864 — [PATCH] dwc_eth_qos: Delete an unnecessary check before the function call "of_node_put"

FromSF Markus Elfring <elfring@users.sourceforge.net>
Date2015-11-07 16:40 +0100
Subject[PATCH] dwc_eth_qos: Delete an unnecessary check before the function call "of_node_put"
Message-ID<qsdKW-45U-9@gated-at.bofh.it>
In reply to#1264731
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 7 Nov 2015 16:30:34 +0100

The of_node_put() function tests whether its argument is NULL
and then returns immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/net/ethernet/synopsys/dwc_eth_qos.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/synopsys/dwc_eth_qos.c b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
index 85b3326..9066d7a 100644
--- a/drivers/net/ethernet/synopsys/dwc_eth_qos.c
+++ b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
@@ -2970,8 +2970,7 @@ err_out_unregister_netdev:
 err_out_clk_dis_aper:
 	clk_disable_unprepare(lp->apb_pclk);
 err_out_free_netdev:
-	if (lp->phy_node)
-		of_node_put(lp->phy_node);
+	of_node_put(lp->phy_node);
 	free_netdev(ndev);
 	platform_set_drvdata(pdev, NULL);
 	return ret;
-- 
2.6.2

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#1264909 — Re: [PATCH] dwc_eth_qos: Delete an unnecessary check before the function call "of_node_put"

FromDavid Miller <davem@davemloft.net>
Date2015-11-07 19:20 +0100
SubjectRe: [PATCH] dwc_eth_qos: Delete an unnecessary check before the function call "of_node_put"
Message-ID<qsgfM-5MQ-5@gated-at.bofh.it>
In reply to#1264864
From: SF Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 7 Nov 2015 16:34:48 +0100

> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sat, 7 Nov 2015 16:30:34 +0100
> 
> The of_node_put() function tests whether its argument is NULL
> and then returns immediately.
> Thus the test around the call is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

Applied.
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