From: Al Viro Date: Tue, 3 Apr 2018 03:50:31 +0000 (-0400) Subject: hypfs_kill_super(): deal with failed allocations X-Git-Tag: v4.17-rc2~21^2~5 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=a24cd490739586a7d2da3549a1844e1d7c4f4fc4;p=linux-block.git hypfs_kill_super(): deal with failed allocations hypfs_fill_super() might fail to allocate sbi; hypfs_kill_super() should not oops on that. Cc: stable@vger.kernel.org Signed-off-by: Al Viro --- diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index 43bbe63e2992..06b513d192b9 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -320,7 +320,7 @@ static void hypfs_kill_super(struct super_block *sb) if (sb->s_root) hypfs_delete_tree(sb->s_root); - if (sb_info->update_file) + if (sb_info && sb_info->update_file) hypfs_remove(sb_info->update_file); kfree(sb->s_fs_info); sb->s_fs_info = NULL;