diff mbox

[02/26] ccid-card-emul: do not crash if backend is not provided

Message ID 1363612272-13713-3-git-send-email-alevy@redhat.com
State New
Headers show

Commit Message

Alon Levy March 18, 2013, 1:10 p.m. UTC 
From: Marc-André Lureau <marcandre.lureau@gmail.com>

Program received signal SIGSEGV, Segmentation fault.
__strcmp_sse42 () at ../sysdeps/x86_64/multiarch/strcmp-sse42.S:164
164               movdqu        (%rsi), %xmm2
(gdb) bt
    at /home/elmarco/320g/src/qemu/hw/ccid-card-emulated.c:477
    at /home/elmarco/320g/src/qemu/hw/ccid-card-emulated.c:503
---
 hw/ccid-card-emulated.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox

Patch

diff --git a/hw/ccid-card-emulated.c b/hw/ccid-card-emulated.c
index c8f8ba3..210433e 100644
--- a/hw/ccid-card-emulated.c
+++ b/hw/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;