LU-2753 llite: check alloc in ll_file_data_get, ll_dir_ioctl

[fs/lustre-release.git] / lustre / llite / file.c

diff --git a/lustre/llite/file.c b/lustre/llite/file.c
index a216652..ce4259d 100644 (file)
--- a/lustre/llite/file.c
+++ b/lustre/llite/file.c
@@ -55,7 +55,11 @@ struct ll_file_data *ll_file_data_get(void)
        struct ll_file_data *fd;
 
        OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, CFS_ALLOC_IO);
+       if (fd == NULL)
+               return NULL;
+
        fd->fd_write_failed = false;
+
        return fd;
 }
 
@@ -2663,11 +2667,11 @@ int ll_have_md_lock(struct inode *inode, __u64 *bits,  ldlm_mode_t l_req_mode)
         CDEBUG(D_INFO, "trying to match res "DFID" mode %s\n", PFID(fid),
                ldlm_lockname[mode]);
 
-        flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING | LDLM_FL_TEST_LOCK;
-        for (i = 0; i < MDS_INODELOCK_MAXSHIFT && *bits != 0; i++) {
-                policy.l_inodebits.bits = *bits & (1 << i);
-                if (policy.l_inodebits.bits == 0)
-                        continue;
+       flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING | LDLM_FL_TEST_LOCK;
+       for (i = 0; i <= MDS_INODELOCK_MAXSHIFT && *bits != 0; i++) {
+               policy.l_inodebits.bits = *bits & (1 << i);
+               if (policy.l_inodebits.bits == 0)
+                       continue;
 
                 if (md_lock_match(ll_i2mdexp(inode), flags, fid, LDLM_IBITS,
                                   &policy, mode, &lockh)) {