Not all kgdb I/O drivers implement a flush operation. Adjust gdbstub_exit accordingly. Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
