diff options
| author | Marc-André Lureau <mlureau@redhat.com> | 2012-11-21 14:16:08 +0100 |
|---|---|---|
| committer | Alon Levy <alevy@redhat.com> | 2013-04-24 11:47:32 +0300 |
| commit | d0ebd78890fba2ab458ec34763dae8566ccb1b72 (patch) | |
| tree | 03dafe97706309f9296ea93d418173f8a545f587 /hw/usb | |
| parent | e2fd2115ce26049335d66ae0ae5e5c0ad06fb498 (diff) | |
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>
Diffstat (limited to 'hw/usb')
| -rw-r--r-- | hw/usb/ccid-card-emulated.c | 3 |
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; |