diff mbox

[RESEND,1/5] usb: mtu3: avoid TX data length truncated in SS/SSP mode

Message ID 3b0c7ca576fee8220d63c9914483b70b0fbc8783.1525486663.git.chunfeng.yun@mediatek.com (mailing list archive)
State New, archived
Headers show

Commit Message

Chunfeng Yun (云春峰) May 5, 2018, 2:21 a.m. UTC
The variable of 'count' is declared as u8, this will cause an issue
due to value truncated when works in SS or SSP mode and data length
is greater than 255, so change it as u32.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/usb/mtu3/mtu3_gadget_ep0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Chunfeng Yun (云春峰) May 10, 2018, 2:16 a.m. UTC | #1
Hi, Greg

   Could you please pick up the series of patches, thanks a lot
 
On Sat, 2018-05-05 at 10:21 +0800, Chunfeng Yun wrote:
> The variable of 'count' is declared as u8, this will cause an issue
> due to value truncated when works in SS or SSP mode and data length
> is greater than 255, so change it as u32.
> 
> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
> ---
>  drivers/usb/mtu3/mtu3_gadget_ep0.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/mtu3/mtu3_gadget_ep0.c b/drivers/usb/mtu3/mtu3_gadget_ep0.c
> index ebdcf7a..d67b540 100644
> --- a/drivers/usb/mtu3/mtu3_gadget_ep0.c
> +++ b/drivers/usb/mtu3/mtu3_gadget_ep0.c
> @@ -546,7 +546,7 @@ static void ep0_tx_state(struct mtu3 *mtu)
>  	struct usb_request *req;
>  	u32 csr;
>  	u8 *src;
> -	u8 count;
> +	u32 count;
>  	u32 maxp;
>  
>  	dev_dbg(mtu->dev, "%s\n", __func__);


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Chunfeng Yun (云春峰) May 10, 2018, 3:11 a.m. UTC | #2
Hi, Greg
On Thu, 2018-05-10 at 10:16 +0800, Chunfeng Yun wrote:
> Hi, Greg
> 
>    Could you please pick up the series of patches, thanks a lot
Please ignore it, I find a problem in [RESEND PATCH 4/5], and need send
a new version.

Very sorry

>  
> On Sat, 2018-05-05 at 10:21 +0800, Chunfeng Yun wrote:
> > The variable of 'count' is declared as u8, this will cause an issue
> > due to value truncated when works in SS or SSP mode and data length
> > is greater than 255, so change it as u32.
> > 
> > Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
> > ---
> >  drivers/usb/mtu3/mtu3_gadget_ep0.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/usb/mtu3/mtu3_gadget_ep0.c b/drivers/usb/mtu3/mtu3_gadget_ep0.c
> > index ebdcf7a..d67b540 100644
> > --- a/drivers/usb/mtu3/mtu3_gadget_ep0.c
> > +++ b/drivers/usb/mtu3/mtu3_gadget_ep0.c
> > @@ -546,7 +546,7 @@ static void ep0_tx_state(struct mtu3 *mtu)
> >  	struct usb_request *req;
> >  	u32 csr;
> >  	u8 *src;
> > -	u8 count;
> > +	u32 count;
> >  	u32 maxp;
> >  
> >  	dev_dbg(mtu->dev, "%s\n", __func__);
> 
> 
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diff mbox

Patch

diff --git a/drivers/usb/mtu3/mtu3_gadget_ep0.c b/drivers/usb/mtu3/mtu3_gadget_ep0.c
index ebdcf7a..d67b540 100644
--- a/drivers/usb/mtu3/mtu3_gadget_ep0.c
+++ b/drivers/usb/mtu3/mtu3_gadget_ep0.c
@@ -546,7 +546,7 @@  static void ep0_tx_state(struct mtu3 *mtu)
 	struct usb_request *req;
 	u32 csr;
 	u8 *src;
-	u8 count;
+	u32 count;
 	u32 maxp;
 
 	dev_dbg(mtu->dev, "%s\n", __func__);