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btrfs: fix race between quota disable and quota assign ioctls
[platform/kernel/linux-rpi.git]
/
drivers
/
acpi
/
acpi_lpss.c
diff --git
a/drivers/acpi/acpi_lpss.c
b/drivers/acpi/acpi_lpss.c
index
30b1f51
..
f609f9d
100644
(file)
--- a/
drivers/acpi/acpi_lpss.c
+++ b/
drivers/acpi/acpi_lpss.c
@@
-403,6
+403,9
@@
static int register_device_clock(struct acpi_device *adev,
if (!lpss_clk_dev)
lpt_register_clock_device();
+ if (IS_ERR(lpss_clk_dev))
+ return PTR_ERR(lpss_clk_dev);
+
clk_data = platform_get_drvdata(lpss_clk_dev);
if (!clk_data)
return -ENODEV;