avdevice/decklink: Fix segfault when running -list_devices on OSX

The string is allocated with CFStringGetCString but was being
deallocated with free(), which would intermittently result in
a segmentation fault.  Use the correct function for freeing the
allocated CFString.

Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

diff --git a/libavdevice/decklink_common.cpp b/libavdevice/decklink_common.cpp
index ff2df959095e6b35cf987f228bf489f46dce7cb7..c782171f2c3211a4d2eecb2c15a6a723a664f11b 100644 (file)
--- a/libavdevice/decklink_common.cpp
+++ b/libavdevice/decklink_common.cpp
@@ -84,7 +84,7 @@ static char *dup_cfstring_to_utf8(CFStringRef w)
 }
 #define DECKLINK_STR    const __CFString *
 #define DECKLINK_STRDUP dup_cfstring_to_utf8
-#define DECKLINK_FREE(s) free((void *) s)
+#define DECKLINK_FREE(s) CFRelease(s)
 #define DECKLINK_BOOL bool
 #else
 #define DECKLINK_STR    const char *