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-rw-r--r--src/loader/loader.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/loader/loader.c b/src/loader/loader.c
index 3c67f9dc244..913b3dcac03 100644
--- a/src/loader/loader.c
+++ b/src/loader/loader.c
@@ -110,8 +110,7 @@ static char *loader_get_dri_config_device_id(void)
static char *drm_construct_id_path_tag(drmDevicePtr device)
{
-/* Length of "pci-xxxx_xx_xx_x\0" */
-#define PCI_ID_PATH_TAG_LENGTH 17
+#define PCI_ID_PATH_TAG_LENGTH sizeof("pci-xxxx_xx_xx_x")
char *tag = NULL;
if (device->bustype == DRM_BUS_PCI) {