meta-xilinx-standalone-sdt: esw.bbclas: Avoid exception

When the glob '*_g.c' does not exist in the source code an exception could
occur.  Avoid this by checking if any files were found before looking for
the first file.

Signed-off-by: Mark Hatle <mark.hatle@amd.com>
(cherry picked from commit 72dee49d75cfbaa4184df3f91a8af6ad2b1f1ae8)
Signed-off-by: Mark Hatle <mark.hatle@amd.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta-xilinx-standalone-sdt/classes-recipe/esw.bbclass b/meta-xilinx-standalone-sdt/classes-recipe/esw.bbclass
index 921e2fe0..a87e1dad 100644
--- a/meta-xilinx-standalone-sdt/classes-recipe/esw.bbclass
+++ b/meta-xilinx-standalone-sdt/classes-recipe/esw.bbclass
@@ -152,7 +152,7 @@ python do_generate_driver_data() {
     command = ["lopper"] + ["-f"] + [system_dt[0]] + ["--"] + ["baremetalconfig_xlnx.py"] + [machine] + [src_dir[0]]
     subprocess.run(command, check = True)
     src_file = glob.glob('*_g.c')
-    if os.path.exists(src_file[0]):
+    if src_file and os.path.exists(src_file[0]):
          bb.note("Generated config file for driver %s" % driver_name)
          command = ["install"] + ["-m"] + ["0755"] + [src_file[0]] + [src_dir[0]]
          subprocess.run(command, check = True)