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ccid-card-emul: do not crash if backend is not provided 

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

Signed-off-by: Marc-André Lureau <mlureau@redhat.com>
Reviewed-by: Alon Levy <alevy@redhat.com>
This commit is contained in:
Marc-André Lureau 2012-11-21 14:16:08 +01:00 committed by Alon Levy
parent e2fd2115ce
commit d0ebd78890
1 changed files with 3 additions and 0 deletions
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3
hw/usb/ccid-card-emulated.c
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@ -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;