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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-11 08:50:05 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-11 08:50:05 +0100
commit73cf7e111ed69d8e1b59a3ae41b14bc77215e9ee (patch)
tree02cd3308d328bce9cf97bf2c1c9d5e932103ebfe /drivers/acpi/device_sysfs.c
parentdriver core: Remove redundant license text (diff)
parentLinux 4.15-rc3 (diff)
downloadlinux-73cf7e111ed69d8e1b59a3ae41b14bc77215e9ee.tar.xz
linux-73cf7e111ed69d8e1b59a3ae41b14bc77215e9ee.zip
Merge 4.15-rc3 into driver-core-next
We want the fixes and changes in here for testing. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi/device_sysfs.c')
-rw-r--r--drivers/acpi/device_sysfs.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c
index 24418932612e..a041689e5701 100644
--- a/drivers/acpi/device_sysfs.c
+++ b/drivers/acpi/device_sysfs.c
@@ -146,6 +146,10 @@ static int create_pnp_modalias(struct acpi_device *acpi_dev, char *modalias,
int count;
struct acpi_hardware_id *id;
+ /* Avoid unnecessarily loading modules for non present devices. */
+ if (!acpi_device_is_present(acpi_dev))
+ return 0;
+
/*
* Since we skip ACPI_DT_NAMESPACE_HID from the modalias below, 0 should
* be returned if ACPI_DT_NAMESPACE_HID is the only ACPI/PNP ID in the