Check return from calloc

Author: johnno1962

CoreFoundation/Base.subproj/CFUtilities.c

@@ -790,11 +790,12 @@ void CFLog1(CFLogLevel lev, CFStringRef message) {
 
     if (maxLength > sizeof(stack_buffer) / sizeof(stack_buffer[0])) {
         buffer = calloc(sizeof(char), maxLength);
-	if (!buffer) {
-	    __android_log_print(ANDROID_LOG_ERROR, tag, "Unable to allocate %d bytes for log message - truncating.", (int)maxLength);
-	    maxLength = sizeof(stack_buffer) / sizeof(stack_buffer[0]);
-	    buffer = &stack_buffer[0];
-	}
+        if (!buffer) {
+            __android_log_print(ANDROID_LOG_ERROR, tag, "Unable to allocate %d bytes for log message - truncating.", (int)maxLength);
+            maxLength = sizeof(stack_buffer) / sizeof(stack_buffer[0]);
+            buffer = &stack_buffer[0];
+            buffer[maxLength-1] = '\000';
+        }
     }
 
     if (maxLength == 1) {