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usb: gadget: printer: define pnp string buffer length 

Avoid using magic numbers.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Andrzej Pietrasiewicz 2015-03-03 10:52:16 +01:00 committed by Felipe Balbi
parent 991cd26249
commit 085617a1eb
1 changed files with 4 additions and 2 deletions
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6
drivers/usb/gadget/legacy/printer.c
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@ -276,9 +276,11 @@ static inline struct usb_endpoint_descriptor *ep_desc(struct usb_gadget *gadget,
/* descriptors that are built on-demand */
#define PNP_STRING_LEN 1024
static char product_desc [40] = DRIVER_DESC;
static char serial_num [40] = "1";
static char pnp_string [1024] =
static char pnp_string[PNP_STRING_LEN] =
"XXMFG:linux;MDL:g_printer;CLS:PRINTER;SN:1;";
/* static strings, in UTF-8 */
@ -1247,7 +1249,7 @@ static int f_printer_bind_config(struct usb_configuration *c, char *pnp_str,
INIT_LIST_HEAD(&dev->rx_buffers);
if (pnp_str)
strlcpy(&pnp_string[2], pnp_str, sizeof(pnp_string) - 2);
strlcpy(&pnp_string[2], pnp_str, PNP_STRING_LEN - 2);
len = strlen(pnp_string);
pnp_string[0] = (len >> 8) & 0xFF;