* [PATCH][next] net: phy: dp83869: fix return of uninitialized variable ret
@ 2019-11-18 11:48 Colin King
2019-11-18 23:29 ` Andrew Lunn
2019-11-19 1:23 ` David Miller
0 siblings, 2 replies; 4+ messages in thread
From: Colin King @ 2019-11-18 11:48 UTC (permalink / raw)
To: Andrew Lunn, Florian Fainelli, Heiner Kallweit, David S . Miller,
Dan Murphy, netdev
Cc: kernel-janitors, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
In the case where the call to phy_interface_is_rgmii returns zero
the variable ret is left uninitialized and this is returned at
the end of the function dp83869_configure_rgmii. Fix this by
returning 0 instead of the uninitialized value in ret.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 01db923e8377 ("net: phy: dp83869: Add TI dp83869 phy")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/net/phy/dp83869.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/phy/dp83869.c b/drivers/net/phy/dp83869.c
index fcd418716c10..1c7a7c57dec3 100644
--- a/drivers/net/phy/dp83869.c
+++ b/drivers/net/phy/dp83869.c
@@ -239,7 +239,7 @@ static int dp83869_configure_rgmii(struct phy_device *phydev,
dp83869->io_impedance &
DP83869_IO_MUX_CFG_IO_IMPEDANCE_CTRL);
- return ret;
+ return 0;
}
static int dp83869_configure_mode(struct phy_device *phydev,
--
2.24.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH][next] net: phy: dp83869: fix return of uninitialized variable ret
2019-11-18 11:48 [PATCH][next] net: phy: dp83869: fix return of uninitialized variable ret Colin King
@ 2019-11-18 23:29 ` Andrew Lunn
2019-11-19 17:27 ` Dan Murphy
2019-11-19 1:23 ` David Miller
1 sibling, 1 reply; 4+ messages in thread
From: Andrew Lunn @ 2019-11-18 23:29 UTC (permalink / raw)
To: Colin King
Cc: Florian Fainelli, Heiner Kallweit, David S . Miller, Dan Murphy,
netdev, kernel-janitors, linux-kernel
On Mon, Nov 18, 2019 at 11:48:35AM +0000, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
>
> In the case where the call to phy_interface_is_rgmii returns zero
> the variable ret is left uninitialized and this is returned at
> the end of the function dp83869_configure_rgmii. Fix this by
> returning 0 instead of the uninitialized value in ret.
>
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: 01db923e8377 ("net: phy: dp83869: Add TI dp83869 phy")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Dan: phy_modify_mmd() could fail. You check the return value for
phy_read and phy_write, so it would be consistent to also check
Andrew
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH][next] net: phy: dp83869: fix return of uninitialized variable ret
2019-11-18 23:29 ` Andrew Lunn
@ 2019-11-19 17:27 ` Dan Murphy
0 siblings, 0 replies; 4+ messages in thread
From: Dan Murphy @ 2019-11-19 17:27 UTC (permalink / raw)
To: Andrew Lunn, Colin King
Cc: Florian Fainelli, Heiner Kallweit, David S . Miller, netdev,
kernel-janitors, linux-kernel
Andrew
On 11/18/19 5:29 PM, Andrew Lunn wrote:
> On Mon, Nov 18, 2019 at 11:48:35AM +0000, Colin King wrote:
>> From: Colin Ian King <colin.king@canonical.com>
>>
>> In the case where the call to phy_interface_is_rgmii returns zero
>> the variable ret is left uninitialized and this is returned at
>> the end of the function dp83869_configure_rgmii. Fix this by
>> returning 0 instead of the uninitialized value in ret.
>>
>> Addresses-Coverity: ("Uninitialized scalar variable")
>> Fixes: 01db923e8377 ("net: phy: dp83869: Add TI dp83869 phy")
>> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
>
> Dan: phy_modify_mmd() could fail. You check the return value for
> phy_read and phy_write, so it would be consistent to also check
Thanks for the heads up on this.
I need to check the set/clear_mmd bits too.
Dan
> Andrew
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH][next] net: phy: dp83869: fix return of uninitialized variable ret
2019-11-18 11:48 [PATCH][next] net: phy: dp83869: fix return of uninitialized variable ret Colin King
2019-11-18 23:29 ` Andrew Lunn
@ 2019-11-19 1:23 ` David Miller
1 sibling, 0 replies; 4+ messages in thread
From: David Miller @ 2019-11-19 1:23 UTC (permalink / raw)
To: colin.king
Cc: andrew, f.fainelli, hkallweit1, dmurphy, netdev, kernel-janitors,
linux-kernel
From: Colin King <colin.king@canonical.com>
Date: Mon, 18 Nov 2019 11:48:35 +0000
> From: Colin Ian King <colin.king@canonical.com>
>
> In the case where the call to phy_interface_is_rgmii returns zero
> the variable ret is left uninitialized and this is returned at
> the end of the function dp83869_configure_rgmii. Fix this by
> returning 0 instead of the uninitialized value in ret.
>
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: 01db923e8377 ("net: phy: dp83869: Add TI dp83869 phy")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
Applied.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2019-11-18 11:48 [PATCH][next] net: phy: dp83869: fix return of uninitialized variable ret Colin King
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2019-11-19 1:23 ` David Miller
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