V4L/DVB (6495): saa7146: saa7146_wait_for_debi_done fixes
Two fixes for the 'saa7146_wait_for_debi_done' code: (a) Timeout did not work when the routine was called with interrupts disabled. (b) Reduce PCI I/O load caused by saa7146_wait_for_debi_done. Seems to be very important on fast machines! Based on code posted by Hartmut Birr @vdr-portal. Signed-off-by: NOliver Endriss <o.endriss@gmx.de> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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