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

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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>
This commit is contained in:
Greg Kroah-Hartman 2019-01-22 15:35:42 +01:00
parent 2d146b924e
commit ad09137631
2 changed files with 1 additions and 9 deletions
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7
arch/x86/xen/debugfs.c
View File

@ -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;
}

3
arch/x86/xen/p2m.c
View File

@ -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);