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authorDavid S. Miller <davem@davemloft.net>2019-08-06 18:44:57 -0700
committerDavid S. Miller <davem@davemloft.net>2019-08-06 18:44:57 -0700
commit13dfb3fa494361ea9a5950f27c9cd8b06d28c04f (patch)
tree1bf30874f57c6c6b21160a10282191fcd0868055 /drivers/acpi/scan.c
parent05bb520376af2c5146d3c44832c22ec3bb54d778 (diff)
parent33920f1ec5bf47c5c0a1d2113989bdd9dfb3fae9 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Just minor overlapping changes in the conflicts here. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/acpi/scan.c')
-rw-r--r--drivers/acpi/scan.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 0e28270b0fd8..aad6be5c0af0 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -2204,6 +2204,12 @@ int __init acpi_scan_init(void)
acpi_gpe_apply_masked_gpes();
acpi_update_all_gpes();
+ /*
+ * Although we call __add_memory() that is documented to require the
+ * device_hotplug_lock, it is not necessary here because this is an
+ * early code when userspace or any other code path cannot trigger
+ * hotplug/hotunplug operations.
+ */
mutex_lock(&acpi_scan_lock);
/*
* Enumerate devices in the ACPI namespace.