i2c: Add support for nested i2c bus locking

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This patch adds the 'level' field into the i2c_adapter structure, which is 
used to represent the 'logical' level of nesting for the purposes of 
lockdep. This field is then used in the i2c_transfer() function, to 
acquire the per-adapter bus_lock with correct nesting level.

Signed-off-by: Jiri Kosina <jikos@jikos.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

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Jiri Kosina 2006-12-10 21:21:30 +01:00 • committed by Jean Delvare

parent ad04d5c387

commit 6ea23039cb

2 changed files with 2 additions and 1 deletions

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2

drivers/i2c/i2c-core.c

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1

include/linux/i2c.h

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