diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index b7d1514cd199c834558a416f74dc29a0ab2d88eb..507f051d1cefd437634454809aa69c748f256a0d 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -746,6 +746,16 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout)
 	ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Waiting for semaphore[%p|%d|%d]\n",
 			  handle, units, timeout));
 
+	/*
+	 * This can be called during resume with interrupts off.
+	 * Like boot-time, we should be single threaded and will
+	 * always get the lock if we try -- timeout or not.
+	 * If this doesn't succeed, then we will oops courtesy of
+	 * might_sleep() in down().
+	 */
+	if (!down_trylock(sem))
+		return AE_OK;
+
 	switch (timeout) {
 		/*
 		 * No Wait:
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index f48227f4c8c9183f03e224852af6fa2f1c14c129..d0d84c43a9d4c547591a6e43ffb8b8857dc90a63 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -262,7 +262,7 @@ acpi_evaluate_integer(acpi_handle handle,
 	if (!data)
 		return AE_BAD_PARAMETER;
 
-	element = kmalloc(sizeof(union acpi_object), GFP_KERNEL);
+	element = kmalloc(sizeof(union acpi_object), irqs_disabled() ? GFP_ATOMIC: GFP_KERNEL);
 	if (!element)
 		return AE_NO_MEMORY;