i2c: Limit core locking to the necessary sections

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The i2c-core code tends to hold the core lock for longer than it
should. Limit locking to the necessary sections for both performance
and clarity. This is also a requirement to support I2C multiplexers in
the future.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Rodolfo Giometti <giometti@linux.it>
Cc: David Brownell <dbrownell@users.sourceforge.net>

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Jean Delvare 2009-06-19 16:58:19 +02:00

parent e549c2b54d

commit 35fc37f818

1 changed files with 28 additions and 23 deletions

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51

drivers/i2c/i2c-core.c

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