[ethtool PATCH v2 06/12] test-common.c: fix test_realloc(NULL, ...)

From: Maciej Żenczykowski <redacted>

This fixes:
  test-common.c: In function 'test_realloc':
  test-common.c:109:8: error: 'block' may be used uninitialized in this function [-Werror=maybe-uninitialized]
    block = realloc(block, sizeof(*block) + size);
          ^


Signed-off-by: David Decotigny <redacted>
---
 test-common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test-common.c b/test-common.c
index adc3cd4..cd63d1d 100644
--- a/test-common.c
+++ b/test-common.c

@@ -100,7 +100,7 @@ void test_free(void *ptr)
 
 void *test_realloc(void *ptr, size_t size)
 {
-	struct list_head *block;
+	struct list_head *block = NULL;
 
 	if (ptr) {
 		block = (struct list_head *)ptr - 1;

-- 
2.7.0.rc3.207.g0ac5344