2 files changed, 8 insertions, 8 deletions
diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index ad0623b659ed..b85ec7a4ec9e 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -677,10 +677,9 @@ DEFINE_PER_CPU(unsigned, mce_poll_count);
  * is already totally * confused. In this case it's likely it will
  * not fully execute the machine check handler either.
  */
-bool machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
+void machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
 {
 	struct mce_bank *mce_banks = this_cpu_ptr(mce_banks_array);
-	bool error_seen = false;
 	struct mce m;
 	int i;
 
@@ -754,8 +753,6 @@ bool machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
 		continue;
 
 log_it:
-		error_seen = true;
-
 		if (flags & MCP_DONTLOG)
 			goto clear_it;
 
@@ -787,8 +784,6 @@ clear_it:
 	 */
 
 	sync_core();
-
-	return error_seen;
 }
 EXPORT_SYMBOL_GPL(machine_check_poll);
 
diff --git a/arch/x86/kernel/cpu/mce/inject.c b/arch/x86/kernel/cpu/mce/inject.c
index 94953d749475..49ed3428785d 100644
--- a/arch/x86/kernel/cpu/mce/inject.c
+++ b/arch/x86/kernel/cpu/mce/inject.c
@@ -487,12 +487,16 @@ static void prepare_msrs(void *info)
 			wrmsrl(MSR_AMD64_SMCA_MCx_ADDR(b), m.addr);
 		}
 
-		wrmsrl(MSR_AMD64_SMCA_MCx_MISC(b), m.misc);
 		wrmsrl(MSR_AMD64_SMCA_MCx_SYND(b), m.synd);
+
+		if (m.misc)
+			wrmsrl(MSR_AMD64_SMCA_MCx_MISC(b), m.misc);
 	} else {
 		wrmsrl(MSR_IA32_MCx_STATUS(b), m.status);
 		wrmsrl(MSR_IA32_MCx_ADDR(b), m.addr);
-		wrmsrl(MSR_IA32_MCx_MISC(b), m.misc);
+
+		if (m.misc)
+			wrmsrl(MSR_IA32_MCx_MISC(b), m.misc);
 	}
 }
 
@@ -795,4 +799,5 @@ static void __exit inject_exit(void)
 
 module_init(inject_init);
 module_exit(inject_exit);
+MODULE_DESCRIPTION("Machine check injection support");
 MODULE_LICENSE("GPL");