Cleanup missing frees on some ioctls

commit 24df1483c272c99ed88b0cba135d0e1dfdee3930 upstream.

Cleanup some missing mem frees on some cifs ioctls, and
clarify others to make more obvious that no data is returned.

Signed-off-by: Steve French <smfrench@gmail.com>
Acked-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index b10263cdea0581eb2b2eb4b829e90e1a74155884..be34b4860675f046cf8a475393eb994fe52f9fda 100644 (file)
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -282,7 +282,7 @@ SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon)
                cifs_dbg(FYI, "Link Speed %lld\n",
                        le64_to_cpu(out_buf->LinkSpeed));
        }
-
+       kfree(out_buf);
        return rc;
 }
 #endif /* STATS2 */
@@ -695,6 +695,7 @@ smb2_clone_range(const unsigned int xid,
 
 cchunk_out:
        kfree(pcchunk);
+       kfree(retbuf);
        return rc;
 }
 
@@ -819,7 +820,6 @@ smb2_duplicate_extents(const unsigned int xid,
 {
        int rc;
        unsigned int ret_data_len;
-       char *retbuf = NULL;
        struct duplicate_extents_to_file dup_ext_buf;
        struct cifs_tcon *tcon = tlink_tcon(trgtfile->tlink);
 
@@ -845,7 +845,7 @@ smb2_duplicate_extents(const unsigned int xid,
                        FSCTL_DUPLICATE_EXTENTS_TO_FILE,
                        true /* is_fsctl */, (char *)&dup_ext_buf,
                        sizeof(struct duplicate_extents_to_file),
-                       (char **)&retbuf,
+                       NULL,
                        &ret_data_len);
 
        if (ret_data_len > 0)
@@ -868,7 +868,6 @@ smb3_set_integrity(const unsigned int xid, struct cifs_tcon *tcon,
                   struct cifsFileInfo *cfile)
 {
        struct fsctl_set_integrity_information_req integr_info;
-       char *retbuf = NULL;
        unsigned int ret_data_len;
 
        integr_info.ChecksumAlgorithm = cpu_to_le16(CHECKSUM_TYPE_UNCHANGED);
@@ -880,7 +879,7 @@ smb3_set_integrity(const unsigned int xid, struct cifs_tcon *tcon,
                        FSCTL_SET_INTEGRITY_INFORMATION,
                        true /* is_fsctl */, (char *)&integr_info,
                        sizeof(struct fsctl_set_integrity_information_req),
-                       (char **)&retbuf,
+                       NULL,
                        &ret_data_len);
 
 }