kdb: Fix dmesg/bta scroll to quit with 'q'

If you press 'q' the pager should exit instead of printing everything
from dmesg which can really bog down a 9600 baud serial link.

The same is true for the bta command.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>

2 files changed, 4 insertions, 0 deletions

diff --git a/kernel/debug/kdb/kdb_bt.c b/kernel/debug/kdb/kdb_bt.c
index 07c9bbb94a0b..b03e0e814e43 100644
--- a/kernel/debug/kdb/kdb_bt.c
+++ b/kernel/debug/kdb/kdb_bt.c
@@ -129,6 +129,8 @@ kdb_bt(int argc, const char **argv)
                 }
                 /* Now the inactive tasks */
                 kdb_do_each_thread(g, p) {
+                        if (KDB_FLAG(CMD_INTERRUPT))
+                                return 0;
                         if (task_curr(p))
                                 continue;
                         if (kdb_bt1(p, mask, argcount, btaprompt))
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 31df1706b9a9..1afeb5c1e5a9 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -2100,6 +2100,8 @@ static int kdb_dmesg(int argc, const char **argv)
                 }
                 if (!lines--)
                         break;
+                if (KDB_FLAG(CMD_INTERRUPT))
+                        return 0;
 
                 kdb_printf("%.*s\n", (int)len - 1, buf);
         }