diff options
| author | Tilman Schmidt <tilman@imap.cc> | 2010-07-05 14:18:27 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-11-22 11:00:18 -0800 |
| commit | e3a8550880f75c4ca34ac8009b8d8190d36d5c0b (patch) | |
| tree | 7fa310a591ccca702baba8ded858effae75be7e9 /fs/cramfs | |
| parent | 29d818b400cb9b0a221e1d7d8682e264f24b772e (diff) | |
isdn: avoid calling tty_ldisc_flush() in atomic context
commit bc10f96757bd6ab3721510df8defa8f21c32f974 upstream.
Remove the call to tty_ldisc_flush() from the RESULT_NO_CARRIER
branch of isdn_tty_modem_result(), as already proposed in commit
00409bb045887ec5e7b9e351bc080c38ab6bfd33.
This avoids a "sleeping function called from invalid context" BUG
when the hardware driver calls the statcallb() callback with
command==ISDN_STAT_DHUP in atomic context, which in turn calls
isdn_tty_modem_result(RESULT_NO_CARRIER, ~), and from there,
tty_ldisc_flush() which may sleep.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/cramfs')
0 files changed, 0 insertions, 0 deletions