egl: fix leaking drmDevicePtr in _eglFindDevice

Fixes: 3a9e1014e1 ("egl: Rename _eglAddDevice() to _eglFindDevice()")
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25524>

src/egl/main/egldevice.c

@@ -185,13 +185,16 @@ _eglFindDevice(int fd, bool software)
 
       if (_eglDeviceSupports(dev, _EGL_DEVICE_DRM) &&
           drmDevicesEqual(device, dev->device) != 0) {
-         goto out;
+         goto cleanup_drm;
       }
    }
 
    /* Couldn't find an EGLDevice for the device. */
    dev = NULL;
 
+cleanup_drm:
+   drmFreeDevice(&device);
+
 #else
    _eglLog(_EGL_FATAL,
            "Driver bug: Built without libdrm, yet looking for HW device");