Commit ad091376 authored Jan 22, 2019 by Greg Kroah-Hartman

x86: xen: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Boris Ostrovsky <boris.ostrovsky@oracle.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>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 2d146b92

arch/x86/xen/debugfs.c

+1 −6

Original line number	Diff line number	Diff line
		@@ -9,13 +9,8 @@ static struct dentry *d_xen_debug;

		struct dentry * __init xen_init_debugfs(void)
		{
		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");
		}

		d_xen_debug = debugfs_create_dir("xen", NULL);
		return d_xen_debug;
		}

arch/x86/xen/p2m.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -817,9 +817,6 @@ 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);

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