[PATCH] phy: stm32: Fix printing of wrong uninitialized port number

[PATCH] phy: stm32: Fix printing of wrong uninitialized port number

[Geert Uytterhoeven]

drivers/phy/st/phy-stm32-usbphyc.c: In function ‘stm32_usbphyc_probe’:
drivers/phy/st/phy-stm32-usbphyc.c:364: warning: ‘i’ may be used uninitialized in this function

Indeed, during the first loop iteration, "i" is uninitialized.
However, "i" does not represent the intended PHY instance number to
print.

Fix this by printing the correct variable instead.

Fixes: 94c358da3a054520 ("phy: stm32: add support for STM32 USB PHY Controller (USBPHYC)")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 drivers/phy/st/phy-stm32-usbphyc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/st/phy-stm32-usbphyc.c b/drivers/phy/st/phy-stm32-usbphyc.c
index bc4e78a19c913dc9..1f682c176fd6239e 100644
--- a/drivers/phy/st/phy-stm32-usbphyc.c
+++ b/drivers/phy/st/phy-stm32-usbphyc.c
@@ -367,8 +367,8 @@ static int stm32_usbphyc_probe(struct platform_device *pdev)
 		if (IS_ERR(phy)) {
 			ret = PTR_ERR(phy);
 			if (ret != -EPROBE_DEFER)
-				dev_err(dev,
-					"failed to create phy%d: %d\n", i, ret);
+				dev_err(dev, "failed to create phy%d: %d\n",
+					port, ret);
 			goto put_child;
 		}
 
-- 
2.7.4

RE: [PATCH] phy: stm32: Fix printing of wrong uninitialized port number

[Amelie DELAUNAY]

Hi Geert,

Just to let you know, this warning is already fixed by a pending patch I've sent two weeks ago: https://lkml.org/lkml/2018/3/20/424.

Thanks,
Amelie

> -----Original Message-----
> From: Geert Uytterhoeven [mailto:geert@linux-m68k.org]
> Sent: jeudi 5 avril 2018 11:47
> To: Kishon Vijay Abraham I <kishon@ti.com>; Maxime Coquelin
> <mcoquelin.stm32@gmail.com>; Alexandre TORGUE
> <alexandre.torgue@st.com>; Amelie DELAUNAY <amelie.delaunay@st.com>
> Cc: linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org;
> Geert Uytterhoeven <geert@linux-m68k.org>
> Subject: [PATCH] phy: stm32: Fix printing of wrong uninitialized port number
> 
> drivers/phy/st/phy-stm32-usbphyc.c: In function ‘stm32_usbphyc_probe’:
> drivers/phy/st/phy-stm32-usbphyc.c:364: warning: ‘i’ may be used
> uninitialized in this function
> 
> Indeed, during the first loop iteration, "i" is uninitialized.
> However, "i" does not represent the intended PHY instance number to print.
> 
> Fix this by printing the correct variable instead.
> 
> Fixes: 94c358da3a054520 ("phy: stm32: add support for STM32 USB PHY
> Controller (USBPHYC)")
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> ---
>  drivers/phy/st/phy-stm32-usbphyc.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/phy/st/phy-stm32-usbphyc.c b/drivers/phy/st/phy-
> stm32-usbphyc.c
> index bc4e78a19c913dc9..1f682c176fd6239e 100644
> --- a/drivers/phy/st/phy-stm32-usbphyc.c
> +++ b/drivers/phy/st/phy-stm32-usbphyc.c
> @@ -367,8 +367,8 @@ static int stm32_usbphyc_probe(struct
> platform_device *pdev)
>  		if (IS_ERR(phy)) {
>  			ret = PTR_ERR(phy);
>  			if (ret != -EPROBE_DEFER)
> -				dev_err(dev,
> -					"failed to create phy%d: %d\n", i, ret);
> +				dev_err(dev, "failed to create phy%d: %d\n",
> +					port, ret);
>  			goto put_child;
>  		}
> 
> --
> 2.7.4