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-rw-r--r--src/arch/x86/acpi_device.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/arch/x86/acpi_device.c b/src/arch/x86/acpi_device.c
index 57fbc89064..0fb8f3b000 100644
--- a/src/arch/x86/acpi_device.c
+++ b/src/arch/x86/acpi_device.c
@@ -148,7 +148,7 @@ const char *acpi_device_scope(struct device *dev)
const char *acpi_device_path_join(struct device *dev, const char *name)
{
static char buf[DEVICE_PATH_MAX] = {};
- size_t len;
+ ssize_t len;
if (!dev)
return NULL;