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-rw-r--r--drivers/usb/gadget/g_dnl.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c
index 631969b3405..f2540eb6ded 100644
--- a/drivers/usb/gadget/g_dnl.c
+++ b/drivers/usb/gadget/g_dnl.c
@@ -207,7 +207,8 @@ void g_dnl_clear_detach(void)
static int on_serialno(const char *name, const char *value, enum env_op op,
int flags)
{
- g_dnl_set_serialnumber((char *)value);
+ if (value)
+ g_dnl_set_serialnumber((char *)value);
return 0;
}
U_BOOT_ENV_CALLBACK(serialno, on_serialno);