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-rw-r--r--tests/fs_tree1.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/fs_tree1.c b/tests/fs_tree1.c
index dff3880..978f6a3 100644
--- a/tests/fs_tree1.c
+++ b/tests/fs_tree1.c
@@ -54,7 +54,7 @@ static void mkfile(const char *name, void *data, size_t len)
rc = write(fd, data, len);
if (rc < 0)
FAIL("write(\"%s\"): %s", name, strerror(errno));
- if (rc != len)
+ if ((unsigned)rc != len)
FAIL("write(\"%s\"): short write", name);
rc = close(fd);