i4l: kill big kernel lock

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The isdn4linux driver uses the big kernel lock only
to serialize access to a few fields in its own
modem_info structure.

The easiest replacement is a driver-wide mutex.
More fine-grained locking would be more appropriate
here, but likely harder to implement.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

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Arnd Bergmann 2010-09-14 09:35:04 +00:00 • committed by David S. Miller

parent 0a5f1d476a

commit 72250d44bc

1 changed files with 6 additions and 5 deletions

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drivers/isdn/i4l/isdn_tty.c

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