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| author | Jaejoong Kim <climbbb.kim@gmail.com> | 2018-02-27 03:04:22 +0100 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-03-13 09:47:51 +0100 |
| commit | 3589cce2b92ba8a11372f2c707adc9eb623efa67 (patch) | |
| tree | 0856b907e21337a2d2b300dca55f8e311d8f9497 /drivers/usb/gadget/udc | |
| parent | usb: dwc3: prevent setting PRTCAP to OTG from debugfs (diff) | |
| download | linux-3589cce2b92ba8a11372f2c707adc9eb623efa67.tar.xz linux-3589cce2b92ba8a11372f2c707adc9eb623efa67.zip | |
usb: gadget: udc: Use scnprintf() instead of snprintf()
The show() method should use scnprintf() not snprintf() because snprintf()
may returns a value that exceeds its second argument.
Signed-off-by: Jaejoong Kim <climbbb.kim@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/gadget/udc')
| -rw-r--r-- | drivers/usb/gadget/udc/core.c | 4 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/dummy_hcd.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c index 1f8b19d9cf97..50988b21a21b 100644 --- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -1482,7 +1482,7 @@ ssize_t name##_show(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ struct usb_udc *udc = container_of(dev, struct usb_udc, dev); \ - return snprintf(buf, PAGE_SIZE, "%s\n", \ + return scnprintf(buf, PAGE_SIZE, "%s\n", \ usb_speed_string(udc->gadget->param)); \ } \ static DEVICE_ATTR_RO(name) @@ -1497,7 +1497,7 @@ ssize_t name##_show(struct device *dev, \ struct usb_udc *udc = container_of(dev, struct usb_udc, dev); \ struct usb_gadget *gadget = udc->gadget; \ \ - return snprintf(buf, PAGE_SIZE, "%d\n", gadget->name); \ + return scnprintf(buf, PAGE_SIZE, "%d\n", gadget->name); \ } \ static DEVICE_ATTR_RO(name) diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c index e744d4b7bfed..baf72f95f0f1 100644 --- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -2366,7 +2366,7 @@ static inline ssize_t show_urb(char *buf, size_t size, struct urb *urb) { int ep = usb_pipeendpoint(urb->pipe); - return snprintf(buf, size, + return scnprintf(buf, size, "urb/%p %s ep%d%s%s len %d/%d\n", urb, ({ char *s; |