test/eventfd-disable: Fix reading uninitialized variable
Fix this:
==2256099== Conditional jump or move depends on uninitialised value(s)
==2256099==    at 0x109DF5: main (eventfd-disable.c:136)
Link:
Reported-by: Vitaly Chikunov
Link:
@@ -21,7 +21,7 @@ int main(int argc, char *argv[])
struct io_uring_sqe *sqe;
struct io_uring_cqe *cqe;
struct io_uring ring;
- uint64_t ptr;
+ uint64_t ptr = 0;
struct iovec vec = {
.iov_base = &ptr,
.iov_len = sizeof(ptr)
