s3cmci: Fix hangup in do_pio_write()

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This commit fixes the regression what was added by commit
088a78af97 "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>

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This commit is contained in:

Yauhen Kharuzhy 2009-02-11 13:25:52 -08:00 • committed by Pierre Ossman

parent 86a6a8749d

commit 9942448837

1 changed files with 1 additions and 1 deletions

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drivers/mmc/host/s3cmci.c

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