From 15924e941c098b5be3dccfe2be28aa22356a45c0 Mon Sep 17 00:00:00 2001
From: Rob Clark <rob.clark@oss.qualcomm.com>
Date: Thu, 30 Oct 2025 07:44:14 -0700
Subject: [PATCH] loader: Ignore empty override strings

If you somehow have MESA_LOADER_DRIVER_OVERRIDE= in your environment,
you certainly weren't trying to force load the driver named "".

Signed-off-by: Rob Clark <rob.clark@oss.qualcomm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38165>
---
 src/loader/loader.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/loader/loader.c b/src/loader/loader.c
index 15bdcbfff07..e49d715d311 100644
--- a/src/loader/loader.c
+++ b/src/loader/loader.c
@@ -766,7 +766,7 @@ loader_get_driver_for_fd(int fd)
     */
    if (__normal_user()) {
       const char *override = os_get_option("MESA_LOADER_DRIVER_OVERRIDE");
-      if (override)
+      if (override && strlen(override))
          return strdup(override);
    }