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(parent: 92f6fa0) | patch
TTY: ntty, add one more sanity check
authorJiri Slaby <jslaby@suse.cz>
Sun, 5 Jun 2011 12:16:17 +0000 (14:16 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 7 Jun 2011 17:36:47 +0000 (10:36 -0700)
commit2872628680bad71a6734e7d379168f990a91cc09
tree651549c2eba524cd8e35c61d6fafc083afdeb3fdtree | snapshot
parent92f6fa09bd453ffe3351fa1f1377a1b7cfa911e6commit | diff
TTY: ntty, add one more sanity check

With the previous patch, we fixed another bug where read_buf was freed
while we still was in n_tty_read. We currently check whether read_buf
is NULL at the start of the function. Add one more check after we wake
up from waiting for input.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/tty/n_tty.c diff | blob | history
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