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-rw-r--r--hw/usb/ccid-card-emulated.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/usb/ccid-card-emulated.c b/hw/usb/ccid-card-emulated.c
index d534c94c1a..6cbb1766ab 100644
--- a/hw/usb/ccid-card-emulated.c
+++ b/hw/usb/ccid-card-emulated.c
@@ -473,6 +473,9 @@ static uint32_t parse_enumeration(char *str,
{
uint32_t ret = not_found_value;
+ if (str == NULL)
+ return 0;
+
while (table->name != NULL) {
if (strcmp(table->name, str) == 0) {
ret = table->value;