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@xxxxxxxxx>
---
drivers/usb/gadget/udc/core.c | 4 ++--
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 93eff7de..306d72d 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -1484,7 +1484,7 @@ 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)
@@ -1499,7 +1499,7 @@ 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 d0128f9..a09ce9b 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -2380,7 +2380,7 @@ 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;
--
2.7.4
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