[U-Boot] [PATCH v2] usb: gadget: dynamic envstr size in cb_getvar

[Nicolas le bayon]

Hi,

here is a second patch proposal with a dynamic size allocation for evstr in
cb_getvar.

Thanks in advance for your feedback/approval.
Best Regards
Nicolas

---

---
 drivers/usb/gadget/f_fastboot.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/f_fastboot.c
b/drivers/usb/gadget/f_fastboot.c
index 2160b1c..8b73277 100644
--- a/drivers/usb/gadget/f_fastboot.c
+++ b/drivers/usb/gadget/f_fastboot.c
@@ -432,9 +432,11 @@ static void cb_getvar(struct usb_ep *ep, struct
usb_request *req)
  else
  strcpy(response, "FAILValue not set");
  } else {
- char envstr[32];
+ char *envstr;

- snprintf(envstr, sizeof(envstr) - 1, "fastboot.%s", cmd);
+ envstr = malloc(sizeof("fastboot.%s", cmd) + 1);
+
+ sprintf(envstr, "fastboot.%s", cmd);
  s = getenv(envstr);
  if (s) {
  strncat(response, s, chars_left);
-- 
1.9.1