[PATCH 5/28] ACPI: sbs: check for NULL device pointer

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From: Lebedev, Vladimir P <vladimir.p.lebedev@xxxxxxxxx>

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
 drivers/acpi/sbs.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 62bef0b..79f38f0 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -1685,10 +1685,16 @@ static int acpi_sbs_add(struct acpi_devi
 
 int acpi_sbs_remove(struct acpi_device *device, int type)
 {
-	struct acpi_sbs *sbs = (struct acpi_sbs *)acpi_driver_data(device);
+	struct acpi_sbs *sbs = NULL;
 	int id;
 
-	if (!device || !sbs) {
+	if (!device) {
+		return -EINVAL;
+	}
+
+	sbs = (struct acpi_sbs *)acpi_driver_data(device);
+
+	if (!sbs) {
 		return -EINVAL;
 	}
 
-- 
1.4.3.rc2.g23bed-dirty
-
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