[PATCH] bootchartd: prevent premature stop by device mapper

[Uwe Geuder (Nomovok Ltd.)]

kernel thread kdmflush was recognized as display manager kdm, check for string length

Signed-off-by: Uwe Geuder (Nomovok Ltd.) <busybox2017-ugeuder at snkmail.com>
---
 init/bootchartd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/init/bootchartd.c b/init/bootchartd.c
index 92aaade0f..0c52785d1 100644
--- a/init/bootchartd.c
+++ b/init/bootchartd.c
@@ -171,7 +171,8 @@ static int dump_procs(FILE *fp, int look_for_login_process)
 			p++;
 			strchrnul(p, ')')[0] = '\0';
 			/* Is it gdm, kdm or a getty? */
-			if (((p[0] == 'g' || p[0] == 'k' || p[0] == 'x') && p[1] == 'd' && p[2] == 'm')
+			if (((p[0] == 'g' || p[0] == 'k' || p[0] == 'x')
+					&& p[1] == 'd' && p[2] == 'm' && p[3] == '\0')
 			 || strstr(p, "getty")
 			) {
 				found_login_process = 1;
-- 
2.12.3