13 Feb
2012
13 Feb
'12
9:04 a.m.
On Fri, Feb 10, 2012 at 12:50:01PM -0500, Yufeng Shen wrote:
GMBUS has several ports and each has it's own corresponding I2C adpater. When multiple I2C adapters call gmbus_xfer() at the same time there is a race condition in using the underlying GMBUS controller. Fixing this by adding a mutex lock when calling gmbus_xfer().
Signed-off-by: Yufeng Shen miletus@chromium.org
I do not see the race. All the i2c transfers should be protected correctly by the i2c core, or else I think we haven't registered our device properly. Could you give an example of when/how this can happen?
Ben