Messages in this thread Patch in this message | | | Date | Wed, 28 Jan 2009 22:33:30 -0800 | From | Sukadev Bhattiprolu <> | Subject | [RFC][PATCH] devpts: Must release s_umount on error |
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From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Date: Wed, 28 Jan 2009 16:57:12 -0800 Subject: [RFC][PATCH] devpts: Must release s_umount on error
We should drop the ->s_umount mutex if an error occurs after the sget()/grab_super() call. This was introduced when adding support for multiple instances of devpts and noticed during a code review/reorg.
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> --- fs/devpts/inode.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index d008105..ad186b4 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c @@ -390,6 +390,7 @@ static int new_pts_mount(struct file_system_type *fs_type, int flags, fail: dput(mnt->mnt_sb->s_root); + up_write(&mnt->mnt_sb->s_umount); deactivate_super(mnt->mnt_sb); return err; } @@ -479,6 +480,7 @@ static int init_pts_mount(struct file_system_type *fs_type, int flags, err = mknod_ptmx(mnt->mnt_sb); if (err) { dput(mnt->mnt_sb->s_root); + up_write(&mnt->mnt_sb->s_umount); deactivate_super(mnt->mnt_sb); } -- 1.5.2.5
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