[EDT][PATCH] kernel/exit.c : Fix missing read_unlock

Maninder Singh
2015-05-21T05:00:16Z

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EP-F6AA0618C49C4AEDA73BFF1B39950BAB
Hi,

From: Maninder Singh <maninder1.s@samsung.com>

Subject: [PATCH 1/1] kernel/exit.c : Fix missing task_unlock

This patch adds missing read_unlock if do_wait_thread or ptrace_do_wait
returns non zero.

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Vaneet Narang <v.narang@samsung.com>
Reviewd-by: Akhilesh Kumar <akhilesh.k@samsung.com>
---
kernel/exit.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/kernel/exit.c b/kernel/exit.c
index 22fcc05..31a061f 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1486,12 +1486,16 @@ repeat:
tsk = current;
do {
retval = do_wait_thread(wo, tsk);
- if (retval)
+ if (retval) {
+ read_unlock(&tasklist_lock);
goto end;
+ }

retval = ptrace_do_wait(wo, tsk);
- if (retval)
+ if (retval) {
+ read_unlock(&tasklist_lock);
goto end;
+ }

if (wo->wo_flags & __WNOTHREAD)
break;
--
1.7.1

Thanks
Maninder Singhÿôèº{.nÇ+‰·Ÿ®‰­†+%ŠËÿ±éÝ¶\x17¥Šwÿº{.nÇ+‰·¥Š{±þG«éÿŠ{ayº\x1dÊ‡Ú™ë,j\a­¢f£¢·hšïêÿ‘êçz_è®\x03(­éšŽŠÝ¢j"ú\x1a¶^[m§ÿÿ¾\a«þG«éÿ¢¸?™¨è­Ú&£ø§~á¶iO•æ¬z·švØ^\x14\x04\x1a¶^[m§ÿÿÃ\fÿ¶ìÿ¢¸?–I¥