V4L/DVB: cx25840: Make cx25840 i2c register read transactions atomic

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There was a small window between writing the cx25840 register
address over the i2c bus and reading the register contents back from the
cx25840 device that the i2c adapter lock was released.  This change ensures the
adapter lock is not released until the register read is done.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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Andy Walls 2010-07-18 17:16:16 -03:00 • committed by Mauro Carvalho Chehab

parent 18a87becf8

commit 5f27264446

1 changed files with 39 additions and 19 deletions

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54

drivers/media/video/cx25840/cx25840-core.c

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