Fixed findings

List of Findings

Error: GCC_ANALYZER_WARNING (CWE-775): [#def1]
liburing-2.6-build/liburing-2.6/test/helpers.h:12: included_from: Included from here.
liburing-2.6-build/liburing-2.6/test/statx.c:16: included_from: Included from here.
liburing-2.6-build/liburing-2.6/src/include/liburing.h: scope_hint: In function ‘test_statx_fd’
liburing-2.6-build/liburing-2.6/src/include/liburing.h:1414:37: warning[-Wanalyzer-fd-leak]: leak of file descriptor ‘open(path, 0)’
liburing-2.6-build/liburing-2.6/src/include/liburing.h: scope_hint: In function ‘test_statx_fd’
liburing-2.6-build/liburing-2.6/test/statx.c: scope_hint: In function ‘test_statx_fd’
liburing-2.6-build/liburing-2.6/test/statx.c: scope_hint: In function ‘test_statx_fd’
liburing-2.6-build/liburing-2.6/test/statx.c: scope_hint: In function ‘test_statx_fd’
liburing-2.6-build/liburing-2.6/src/include/liburing.h: scope_hint: In function ‘test_statx_fd’
liburing-2.6-build/liburing-2.6/src/include/liburing.h: scope_hint: In function ‘test_statx_fd’
# 1412|   {
# 1413|   	struct io_uring_sq *sq = &ring->sq;
# 1414|-> 	unsigned int head, next = sq->sqe_tail + 1;
# 1415|   	int shift = 0;
# 1416|   

Error: CPPCHECK_WARNING (CWE-401): [#def2]
liburing-2.6-build/liburing-2.6/test/buf-ring.c:349: error[memleak]: Memory leak: buffers
#  347|   	read_fd = open("/dev/zero", O_RDONLY);
#  348|   	if (read_fd < 0)
#  349|-> 		return 1;
#  350|   
#  351|   	for (loop = 0; loop < loops; loop++) {

Error: GCC_ANALYZER_WARNING (CWE-401): [#def3]
liburing-2.6-build/liburing-2.6/test/recv-msgall.c: scope_hint: In function ‘do_send’
liburing-2.6-build/liburing-2.6/test/recv-msgall.c:159:24: warning[-Wanalyzer-malloc-leak]: leak of ‘buf’
#  157|   	if (ret) {
#  158|   		fprintf(stderr, "queue init failed: %d\n", ret);
#  159|-> 		return 1;
#  160|   	}
#  161|   

Error: GCC_ANALYZER_WARNING (CWE-775): [#def4]
liburing-2.6-build/liburing-2.6/test/register-restrictions.c: scope_hint: In function ‘test_restrictions_sqe_op’
liburing-2.6-build/liburing-2.6/test/register-restrictions.c:39:24: warning[-Wanalyzer-fd-leak]: leak of file descriptor ‘pipe1[0]’
#   37|   	if (pipe(pipe1) != 0) {
#   38|   		perror("pipe");
#   39|-> 		return TEST_FAILED;
#   40|   	}
#   41|   

Error: GCC_ANALYZER_WARNING (CWE-775): [#def5]
liburing-2.6-build/liburing-2.6/test/register-restrictions.c:39:24: warning[-Wanalyzer-fd-leak]: leak of file descriptor ‘pipe1[1]’
#   37|   	if (pipe(pipe1) != 0) {
#   38|   		perror("pipe");
#   39|-> 		return TEST_FAILED;
#   40|   	}
#   41|   

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