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authorPaul Mundt <lethal@linux-sh.org>2010-07-02 13:05:10 +0900
committerPaul Mundt <lethal@linux-sh.org>2010-07-02 13:05:10 +0900
commit12462d77ec78be9fb033580b7b64ddf9d0fee44b (patch)
treea21157428d46259ed2c8a727ac12a2e658d8181a /drivers/acpi/acpica/exsystem.c
parent598ee698d9db7beb06e12f4ea9d9a5fbc03a3a77 (diff)
parent97e0214044d9f279a3d6286c9f859696ef0b7ebe (diff)
Merge branches 'sh/highmem' and 'sh/stable-updates'
Diffstat (limited to 'drivers/acpi/acpica/exsystem.c')
-rw-r--r--drivers/acpi/acpica/exsystem.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c
index 6d32e09327f..675aaa91a77 100644
--- a/drivers/acpi/acpica/exsystem.c
+++ b/drivers/acpi/acpica/exsystem.c
@@ -201,6 +201,14 @@ acpi_status acpi_ex_system_do_sleep(u64 how_long)
acpi_ex_relinquish_interpreter();
+ /*
+ * For compatibility with other ACPI implementations and to prevent
+ * accidental deep sleeps, limit the sleep time to something reasonable.
+ */
+ if (how_long > ACPI_MAX_SLEEP) {
+ how_long = ACPI_MAX_SLEEP;
+ }
+
acpi_os_sleep(how_long);
/* And now we must get the interpreter again */