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authorLi Zefan <lizefan@huawei.com>2014-02-12 12:44:57 -0800
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-07-16 07:22:11 +0200
commit52c50c78546d89cdd9787193781ae7b4856e5293 (patch)
tree2ce9a07f6bb201cf7a559b7b78eaa2c7d89c8841 /cpukit
parentjffs2: use generic posix ACL infrastructure (diff)
downloadrtems-52c50c78546d89cdd9787193781ae7b4856e5293.tar.bz2
jffs2: remove from wait queue after schedule()
@wait is a local variable, so if we don't remove it from the wait queue list, later wake_up() may end up accessing invalid memory. This was spotted by eyes. Signed-off-by: Li Zefan <lizefan@huawei.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'cpukit')
-rw-r--r--cpukit/libfs/src/jffs2/src/nodemgmt.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/cpukit/libfs/src/jffs2/src/nodemgmt.c b/cpukit/libfs/src/jffs2/src/nodemgmt.c
index 40fa34c692..6cb8dc4d6f 100644
--- a/cpukit/libfs/src/jffs2/src/nodemgmt.c
+++ b/cpukit/libfs/src/jffs2/src/nodemgmt.c
@@ -181,6 +181,7 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
spin_unlock(&c->erase_completion_lock);
schedule();
+ remove_wait_queue(&c->erase_wait, &wait);
} else
spin_unlock(&c->erase_completion_lock);
} else if (ret)