2004-01-25 05:04:37

by Bryan Whitehead

[permalink] [raw]
Subject: [PATCH 2.6.2-rc1-mm3] drivers/usb/storage/dpcm.c


In function dpcm_transport the compiler complains about ret not being used:
drivers/usb/storage/dpcm.c: In function `dpcm_transport':
drivers/usb/storage/dpcm.c:46: warning: unused variable `ret'

ret is not used if CONFIG_USB_STORAGE_SDDR09 is not set. Instead of adding
more ifdef's to the code this patch puts ret to use for the other 2 cases in
the switch statement (case 0 and default).

--- drivers/usb/storage/dpcm.c.orig 2004-01-24 20:51:40.631038904 -0800
+++ drivers/usb/storage/dpcm.c 2004-01-24 20:50:05.155553384 -0800
@@ -56,7 +56,8 @@ int dpcm_transport(Scsi_Cmnd *srb, struc
/*
* LUN 0 corresponds to the CompactFlash card reader.
*/
- return usb_stor_CB_transport(srb, us);
+ ret = usb_stor_CB_transport(srb, us);
+ break;

#ifdef CONFIG_USB_STORAGE_SDDR09
case 1:
@@ -72,11 +73,12 @@ int dpcm_transport(Scsi_Cmnd *srb, struc
ret = sddr09_transport(srb, us);
srb->device->lun = 1; us->srb->device->lun = 1;

- return ret;
+ break;
#endif

default:
US_DEBUGP("dpcm_transport: Invalid LUN %d\n", srb->device->lun);
- return USB_STOR_TRANSPORT_ERROR;
+ ret = USB_STOR_TRANSPORT_ERROR;
}
+ return ret;
}

--
Bryan Whitehead
[email protected]


2004-01-25 08:41:57

by Matthew Dharm

[permalink] [raw]
Subject: Re: [PATCH 2.6.2-rc1-mm3] drivers/usb/storage/dpcm.c

One message a day to report a particular bug is really enough.... :)

That said, I think it would be better to add the ifdef's instead of more
substantial code changes.

Matt

On Sat, Jan 24, 2004 at 09:03:42PM -0800, Bryan Whitehead wrote:
>
> In function dpcm_transport the compiler complains about ret not being used:
> drivers/usb/storage/dpcm.c: In function `dpcm_transport':
> drivers/usb/storage/dpcm.c:46: warning: unused variable `ret'
>
> ret is not used if CONFIG_USB_STORAGE_SDDR09 is not set. Instead of adding
> more ifdef's to the code this patch puts ret to use for the other 2 cases in
> the switch statement (case 0 and default).
>
> --- drivers/usb/storage/dpcm.c.orig 2004-01-24 20:51:40.631038904 -0800
> +++ drivers/usb/storage/dpcm.c 2004-01-24 20:50:05.155553384 -0800
> @@ -56,7 +56,8 @@ int dpcm_transport(Scsi_Cmnd *srb, struc
> /*
> * LUN 0 corresponds to the CompactFlash card reader.
> */
> - return usb_stor_CB_transport(srb, us);
> + ret = usb_stor_CB_transport(srb, us);
> + break;
>
> #ifdef CONFIG_USB_STORAGE_SDDR09
> case 1:
> @@ -72,11 +73,12 @@ int dpcm_transport(Scsi_Cmnd *srb, struc
> ret = sddr09_transport(srb, us);
> srb->device->lun = 1; us->srb->device->lun = 1;
>
> - return ret;
> + break;
> #endif
>
> default:
> US_DEBUGP("dpcm_transport: Invalid LUN %d\n", srb->device->lun);
> - return USB_STOR_TRANSPORT_ERROR;
> + ret = USB_STOR_TRANSPORT_ERROR;
> }
> + return ret;
> }
>
> --
> Bryan Whitehead
> [email protected]
>

--
Matthew Dharm Home: [email protected]
Maintainer, Linux USB Mass Storage Driver

E: You run this ship with Windows?! YOU IDIOT!
L: Give me a break, it came bundled with the computer!
-- ESR and Lan Solaris
User Friendly, 12/8/1998


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2004-01-25 09:05:43

by Bryan Whitehead

[permalink] [raw]
Subject: Re: [PATCH 2.6.2-rc1-mm3] drivers/usb/storage/dpcm.c

Matthew Dharm wrote:
> One message a day to report a particular bug is really enough.... :)
>
> That said, I think it would be better to add the ifdef's instead of more
> substantial code changes.

No problemo, I was just getting my feet wet on small compiler warning
fixes and the SubmitingPatches doc said ifdefs were from the devil. ;)

I'll sent a patch later sunday...

>
> Matt
>
> On Sat, Jan 24, 2004 at 09:03:42PM -0800, Bryan Whitehead wrote:
>
>>In function dpcm_transport the compiler complains about ret not being used:
>>drivers/usb/storage/dpcm.c: In function `dpcm_transport':
>>drivers/usb/storage/dpcm.c:46: warning: unused variable `ret'
>>
>>ret is not used if CONFIG_USB_STORAGE_SDDR09 is not set. Instead of adding
>>more ifdef's to the code this patch puts ret to use for the other 2 cases in
>>the switch statement (case 0 and default).
>>
>>--- drivers/usb/storage/dpcm.c.orig 2004-01-24 20:51:40.631038904 -0800
>>+++ drivers/usb/storage/dpcm.c 2004-01-24 20:50:05.155553384 -0800
>>@@ -56,7 +56,8 @@ int dpcm_transport(Scsi_Cmnd *srb, struc
>> /*
>> * LUN 0 corresponds to the CompactFlash card reader.
>> */
>>- return usb_stor_CB_transport(srb, us);
>>+ ret = usb_stor_CB_transport(srb, us);
>>+ break;
>>
>> #ifdef CONFIG_USB_STORAGE_SDDR09
>> case 1:
>>@@ -72,11 +73,12 @@ int dpcm_transport(Scsi_Cmnd *srb, struc
>> ret = sddr09_transport(srb, us);
>> srb->device->lun = 1; us->srb->device->lun = 1;
>>
>>- return ret;
>>+ break;
>> #endif
>>
>> default:
>> US_DEBUGP("dpcm_transport: Invalid LUN %d\n", srb->device->lun);
>>- return USB_STOR_TRANSPORT_ERROR;
>>+ ret = USB_STOR_TRANSPORT_ERROR;
>> }
>>+ return ret;
>> }
>>
>>--
>>Bryan Whitehead
>>[email protected]
>>
>
>


--
Bryan Whitehead
Email:[email protected]
WorkE:[email protected]

2004-01-26 18:17:08

by Randy.Dunlap

[permalink] [raw]
Subject: Re: [PATCH 2.6.2-rc1-mm3] drivers/usb/storage/dpcm.c

On Sun, 25 Jan 2004 01:00:09 -0800 Bryan Whitehead <[email protected]> wrote:

| Matthew Dharm wrote:
| > One message a day to report a particular bug is really enough.... :)
| >
| > That said, I think it would be better to add the ifdef's instead of more
| > substantial code changes.
|
| No problemo, I was just getting my feet wet on small compiler warning
| fixes and the SubmitingPatches doc said ifdefs were from the devil. ;)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
FWIW, I prefer Bryan's patch instead of the #ifdefs.

--
~Randy


| I'll sent a patch later sunday...
|
| >
| > Matt
| >
| > On Sat, Jan 24, 2004 at 09:03:42PM -0800, Bryan Whitehead wrote:
| >
| >>In function dpcm_transport the compiler complains about ret not being used:
| >>drivers/usb/storage/dpcm.c: In function `dpcm_transport':
| >>drivers/usb/storage/dpcm.c:46: warning: unused variable `ret'
| >>
| >>ret is not used if CONFIG_USB_STORAGE_SDDR09 is not set. Instead of adding
| >>more ifdef's to the code this patch puts ret to use for the other 2 cases in
| >>the switch statement (case 0 and default).
| >>
| >>--- drivers/usb/storage/dpcm.c.orig 2004-01-24 20:51:40.631038904 -0800
| >>+++ drivers/usb/storage/dpcm.c 2004-01-24 20:50:05.155553384 -0800
| >>@@ -56,7 +56,8 @@ int dpcm_transport(Scsi_Cmnd *srb, struc
| >> /*
| >> * LUN 0 corresponds to the CompactFlash card reader.
| >> */
| >>- return usb_stor_CB_transport(srb, us);
| >>+ ret = usb_stor_CB_transport(srb, us);
| >>+ break;
| >>
| >> #ifdef CONFIG_USB_STORAGE_SDDR09
| >> case 1:
| >>@@ -72,11 +73,12 @@ int dpcm_transport(Scsi_Cmnd *srb, struc
| >> ret = sddr09_transport(srb, us);
| >> srb->device->lun = 1; us->srb->device->lun = 1;
| >>
| >>- return ret;
| >>+ break;
| >> #endif
| >>
| >> default:
| >> US_DEBUGP("dpcm_transport: Invalid LUN %d\n", srb->device->lun);
| >>- return USB_STOR_TRANSPORT_ERROR;
| >>+ ret = USB_STOR_TRANSPORT_ERROR;
| >> }
| >>+ return ret;
| >> }
| >>
| >>--