* [patch] usb: gadget: fsl_qe_udc: signedness bug in qe_get_frame()
@ 2016-07-15 11:15 ` Dan Carpenter
0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2016-07-15 11:15 UTC (permalink / raw)
To: Li Yang
Cc: Felipe Balbi, Greg Kroah-Hartman, linux-usb, linuxppc-dev,
kernel-janitors
We can't assign -EINVAL to a u16.
Fixes: 3948f0e0c999 ('usb: add Freescale QE/CPM USB peripheral controller driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index 93d28cb..901366f 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -1878,11 +1878,8 @@ static int qe_get_frame(struct usb_gadget *gadget)
tmp = in_be16(&udc->usb_param->frame_n);
if (tmp & 0x8000)
- tmp = tmp & 0x07ff;
- else
- tmp = -EINVAL;
-
- return (int)tmp;
+ return tmp & 0x07ff;
+ return -EINVAL;
}
static int fsl_qe_start(struct usb_gadget *gadget,
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [patch] usb: gadget: fsl_qe_udc: signedness bug in qe_get_frame()
@ 2016-07-15 11:15 ` Dan Carpenter
0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2016-07-15 11:15 UTC (permalink / raw)
To: Li Yang
Cc: Felipe Balbi, Greg Kroah-Hartman, linux-usb, linuxppc-dev,
kernel-janitors
We can't assign -EINVAL to a u16.
Fixes: 3948f0e0c999 ('usb: add Freescale QE/CPM USB peripheral controller driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index 93d28cb..901366f 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -1878,11 +1878,8 @@ static int qe_get_frame(struct usb_gadget *gadget)
tmp = in_be16(&udc->usb_param->frame_n);
if (tmp & 0x8000)
- tmp = tmp & 0x07ff;
- else
- tmp = -EINVAL;
-
- return (int)tmp;
+ return tmp & 0x07ff;
+ return -EINVAL;
}
static int fsl_qe_start(struct usb_gadget *gadget,
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [patch] usb: gadget: fsl_qe_udc: signedness bug in qe_get_frame()
2016-07-15 11:15 ` Dan Carpenter
@ 2016-07-18 1:50 ` Peter Chen
-1 siblings, 0 replies; 4+ messages in thread
From: Peter Chen @ 2016-07-18 1:50 UTC (permalink / raw)
To: Dan Carpenter
Cc: Li Yang, Felipe Balbi, Greg Kroah-Hartman, linux-usb,
linuxppc-dev, kernel-janitors
On Fri, Jul 15, 2016 at 02:15:47PM +0300, Dan Carpenter wrote:
> We can't assign -EINVAL to a u16.
>
> Fixes: 3948f0e0c999 ('usb: add Freescale QE/CPM USB peripheral controller driver')
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
> index 93d28cb..901366f 100644
> --- a/drivers/usb/gadget/udc/fsl_qe_udc.c
> +++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
> @@ -1878,11 +1878,8 @@ static int qe_get_frame(struct usb_gadget *gadget)
>
> tmp = in_be16(&udc->usb_param->frame_n);
> if (tmp & 0x8000)
> - tmp = tmp & 0x07ff;
> - else
> - tmp = -EINVAL;
> -
> - return (int)tmp;
> + return tmp & 0x07ff;
> + return -EINVAL;
> }
Acked-by: Peter Chen <peter.chen@nxp.com>
>
> static int fsl_qe_start(struct usb_gadget *gadget,
> --
> To unsubscribe from this list: send the line "unsubscribe linux-usb" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Best Regards,
Peter Chen
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [patch] usb: gadget: fsl_qe_udc: signedness bug in qe_get_frame()
@ 2016-07-18 1:50 ` Peter Chen
0 siblings, 0 replies; 4+ messages in thread
From: Peter Chen @ 2016-07-18 1:50 UTC (permalink / raw)
To: Dan Carpenter
Cc: Li Yang, Felipe Balbi, Greg Kroah-Hartman, linux-usb,
linuxppc-dev, kernel-janitors
On Fri, Jul 15, 2016 at 02:15:47PM +0300, Dan Carpenter wrote:
> We can't assign -EINVAL to a u16.
>
> Fixes: 3948f0e0c999 ('usb: add Freescale QE/CPM USB peripheral controller driver')
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
> index 93d28cb..901366f 100644
> --- a/drivers/usb/gadget/udc/fsl_qe_udc.c
> +++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
> @@ -1878,11 +1878,8 @@ static int qe_get_frame(struct usb_gadget *gadget)
>
> tmp = in_be16(&udc->usb_param->frame_n);
> if (tmp & 0x8000)
> - tmp = tmp & 0x07ff;
> - else
> - tmp = -EINVAL;
> -
> - return (int)tmp;
> + return tmp & 0x07ff;
> + return -EINVAL;
> }
Acked-by: Peter Chen <peter.chen@nxp.com>
>
> static int fsl_qe_start(struct usb_gadget *gadget,
> --
> To unsubscribe from this list: send the line "unsubscribe linux-usb" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Best Regards,
Peter Chen
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2016-07-18 1:59 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2016-07-15 11:15 [patch] usb: gadget: fsl_qe_udc: signedness bug in qe_get_frame() Dan Carpenter
2016-07-15 11:15 ` Dan Carpenter
2016-07-18 1:50 ` Peter Chen
2016-07-18 1:50 ` Peter Chen
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