s3cmci: Fix hangup in do_pio_write()
This commit fixes the regression what was added by commit
088a78af978d0c8e339071a9b2bca1f4cb368f30 "s3cmci: Support transfers
which are not multiple of 32 bits."
fifo_free() now returns amount of available space in FIFO buffer in
bytes. But do_pio_write() writes to FIFO 32-bit words. Condition for
return from cycle is (fifo_free() == 0), but when fifo has 1..3 bytes
of free space then this condition will never be true and system hangs.
This patch changes condition in the while() to (fifo_free() > 3).
Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
1 file changed