Not all kgdb I/O drivers implement a flush operation. Adjust
gdbstub_exit accordingly.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
kernel/debug/gdbstub.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c
index 5d7ed0a..c174ea3 100644
--- a/kernel/debug/gdbstub.c
+++ b/kernel/debug/gdbstub.c
@@ -1132,5 +1132,6 @@ void gdbstub_exit(int status)
dbg_io_ops->write_char(hex_asc_lo(checksum));
/* make sure the output is flushed, lest the bootloader clobber it */
- dbg_io_ops->flush();
+ if (dbg_io_ops->flush)
+ dbg_io_ops->flush();
}
--
1.7.3.4
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