btrfs-progs: use wider int type in btrfs_min_global_blk_rsv_size

We know nodesize should not overflow with the shift, but le'ts make the
code correct if the resulting type can store the full value.

Resolves-coverity-id: 1358120
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/utils.h b/utils.h
index f48c43e3..4fee4692 100644
--- a/utils.h
+++ b/utils.h
@@ -209,8 +209,9 @@ int get_subvol_info(const char *fullpath, struct root_info *get_ri);
  */
 static inline u64 btrfs_min_global_blk_rsv_size(u32 nodesize)
 {
-	return nodesize << 10;
+	return (u64)nodesize << 10;
 }
+
 static inline u64 btrfs_min_dev_size(u32 nodesize)
 {
 	return 2 * (BTRFS_MKFS_SYSTEM_GROUP_SIZE +