[PATCH] eal: fix cleanup on Windows

[Thomas Monjalon <thomas@monjalon.net>]

The memory allocated with _aligned_malloc()
must be released with _aligned_free() on Windows.

The POSIX free() was called in eal_lcore_var_cleanup(),
called in rte_eal_cleanup(), and triggered a heap corruption:
exit status 3221226356 or signal 3221226228 SIGinvalid
with MALLOC_PERTURB_=86

Fixes: 5bce9bed67ad ("eal: add static per-lcore memory allocation facility")

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
 lib/eal/common/eal_common_lcore_var.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/eal/common/eal_common_lcore_var.c b/lib/eal/common/eal_common_lcore_var.c
index 0e9e8e4804..a1b2458839 100644
--- a/lib/eal/common/eal_common_lcore_var.c
+++ b/lib/eal/common/eal_common_lcore_var.c
@@ -54,7 +54,6 @@ lcore_var_alloc(size_t size, size_t align)
 		current_buffer = _aligned_malloc(alloc_size, RTE_CACHE_LINE_SIZE);
 #else
 		current_buffer = aligned_alloc(RTE_CACHE_LINE_SIZE, alloc_size);
-
 #endif
 		RTE_VERIFY(current_buffer != NULL);
 
@@ -108,7 +107,11 @@ eal_lcore_var_cleanup(void)
 	while (current_buffer != NULL) {
 		struct lcore_var_buffer *prev = current_buffer->prev;
 
+#ifdef RTE_EXEC_ENV_WINDOWS
+		_aligned_free(current_buffer);
+#else
 		free(current_buffer);
+#endif
 
 		current_buffer = prev;
 	}
-- 
2.46.0