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path: root/drivers/acpi/acpica/dbexec.c
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Diffstat (limited to 'drivers/acpi/acpica/dbexec.c')
-rw-r--r--drivers/acpi/acpica/dbexec.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/dbexec.c b/drivers/acpi/acpica/dbexec.c
index 258e6157c658..d713e2df65b9 100644
--- a/drivers/acpi/acpica/dbexec.c
+++ b/drivers/acpi/acpica/dbexec.c
@@ -370,7 +370,17 @@ acpi_db_execute(char *name, char **args, acpi_object_type * types, u32 flags)
#ifdef ACPI_DEBUG_OUTPUT
u32 previous_allocations;
u32 allocations;
+#endif
+ /*
+ * Allow one execution to be performed by debugger or single step
+ * execution will be dead locked by the interpreter mutexes.
+ */
+ if (acpi_gbl_method_executing) {
+ acpi_os_printf("Only one debugger execution is allowed.\n");
+ return;
+ }
+#ifdef ACPI_DEBUG_OUTPUT
/* Memory allocation tracking */
previous_allocations = acpi_db_get_outstanding_allocations();