[PATCH 6/6] x86: xen: no need to check return value of debugfs_create functions

Greg Kroah-Hartman
2019-01-22T14:36:36Z

Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <x86@kernel.org>
Cc: <xen-devel@lists.xenproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/xen/debugfs.c | 7 +------
arch/x86/xen/p2m.c | 3 ---
2 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/arch/x86/xen/debugfs.c b/arch/x86/xen/debugfs.c
index 13da87918b4f..532410998684 100644
--- a/arch/x86/xen/debugfs.c
+++ b/arch/x86/xen/debugfs.c
@@ -9,13 +9,8 @@ static struct dentry *d_xen_debug;

struct dentry * __init xen_init_debugfs(void)
{
- if (!d_xen_debug) {
+ if (!d_xen_debug)
d_xen_debug = debugfs_create_dir("xen", NULL);
-
- if (!d_xen_debug)
- pr_warning("Could not create 'xen' debugfs directory\n");
- }
-
return d_xen_debug;
}

diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 055e37e43541..9d3e29805b73 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -810,9 +810,6 @@ static int __init xen_p2m_debugfs(void)
{
struct dentry *d_xen = xen_init_debugfs();

- if (d_xen == NULL)
- return -ENOMEM;
-
d_mmu_debug = debugfs_create_dir("mmu", d_xen);

debugfs_create_file("p2m", 0600, d_mmu_debug, NULL, &p2m_dump_fops);
--
2.20.1