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-rw-r--r--xlators/storage/posix/src/posix-helpers.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/xlators/storage/posix/src/posix-helpers.c b/xlators/storage/posix/src/posix-helpers.c
index 2cf4666..5725cad 100644
--- a/xlators/storage/posix/src/posix-helpers.c
+++ b/xlators/storage/posix/src/posix-helpers.c
@@ -266,6 +266,16 @@ _posix_xattr_get_set (dict_t *xattr_req,
goto err;
}
+ /*
+ * There could be a situation where the ia_size is
+ * zero. GF_CALLOC will return a pointer to the
+ * memory initialized by gf_mem_set_acct_info.
+ * This function adds a header and a footer to
+ * the allocated memory. The returned pointer
+ * points to the memory just after the header, but
+ * when size is zero, there is no space for user
+ * data. The memory can be freed by calling GF_FREE.
+ */
databuf = GF_CALLOC (1, filler->stbuf->ia_size,
gf_posix_mt_char);
if (!databuf) {