x86: Fix common misspellings

They were generated by 'codespell' and then manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: trivial@kernel.org
LKML-Reference: <1300389856-1099-3-git-send-email-lucas.demarchi@profusion.mobi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/cpu/cpufreq/longhaul.c b/arch/x86/kernel/cpu/cpufreq/longhaul.c
index 03162da..cf48cdd 100644
--- a/arch/x86/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/x86/kernel/cpu/cpufreq/longhaul.c
@@ -444,7 +444,7 @@
 		return -EINVAL;
 	}
 	/* Get max multiplier - as we always did.
-	 * Longhaul MSR is usefull only when voltage scaling is enabled.
+	 * Longhaul MSR is useful only when voltage scaling is enabled.
 	 * C3 is booting at max anyway. */
 	maxmult = mult;
 	/* Get min multiplier */
@@ -1011,7 +1011,7 @@
  * trigger frequency transition in some cases. */
 module_param(disable_acpi_c3, int, 0644);
 MODULE_PARM_DESC(disable_acpi_c3, "Don't use ACPI C3 support");
-/* Change CPU voltage with frequency. Very usefull to save
+/* Change CPU voltage with frequency. Very useful to save
  * power, but most VIA C3 processors aren't supporting it. */
 module_param(scale_voltage, int, 0644);
 MODULE_PARM_DESC(scale_voltage, "Scale voltage of processor");