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s390/3270: fix use after free of tty3270_screen structure
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 4 Dec 2013 13:29:11 +0000 (14:29 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 16 Dec 2013 13:37:45 +0000 (14:37 +0100)
The deactivation and freeing of the tty view of the 3270 device
can race with a tty3270_update invocation via the update timer.
To fix this move the del_timer_sync call for the update timer from
tty3270_free_view to tty3270_free prior to the tty3270_free_screen
call.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

No differences found
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