common/buffer: pass `const int[2]` to close_pipe()

be explicit instead of passing a `const int*`, this avoids the warning
from clang analyzer:

  Array subscript is undefined

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/common/buffer.cc b/src/common/buffer.cc
index bb2132fe719f636de547d89db80a5d183e4293d7..360d97453549956499ea85399d8919b636b11575 100644 (file)
--- a/src/common/buffer.cc
+++ b/src/common/buffer.cc
@@ -550,7 +550,7 @@ using namespace ceph;
       return 0;
     }
 
-    static void close_pipe(const int *fds) {
+    static void close_pipe(const int fds[2]) {
       if (fds[0] >= 0)
        VOID_TEMP_FAILURE_RETRY(::close(fds[0]));
       if (fds[1] >= 0)