ext4: fix overflow caused by missing cast in ext4_resize_fs()

[sfrench/cifs-2.6.git] / fs / ext4 / resize.c

diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index c3ed9021b781c57cce5d6cff163c216be6c20020..035cd3f4785e2d824be923cbed2c5012b18abb9c 100644 (file)
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1927,7 +1927,8 @@ retry:
                        n_desc_blocks = o_desc_blocks +
                                le16_to_cpu(es->s_reserved_gdt_blocks);
                        n_group = n_desc_blocks * EXT4_DESC_PER_BLOCK(sb);
-                       n_blocks_count = n_group * EXT4_BLOCKS_PER_GROUP(sb);
+                       n_blocks_count = (ext4_fsblk_t)n_group *
+                               EXT4_BLOCKS_PER_GROUP(sb);
                        n_group--; /* set to last group number */
                }