spi_bfin5xx: limit reaches -1
bfin_spi_flush() returns limit, which reaches -1 upon timeout. but in function bfin_spi_pump_transfers() it is compared with 0. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Bryan Wu <cooloney@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -169,7 +169,7 @@ static int bfin_spi_flush(struct driver_data *drv_data)
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unsigned long limit = loops_per_jiffy << 1;
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unsigned long limit = loops_per_jiffy << 1;
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/* wait for stop and clear stat */
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/* wait for stop and clear stat */
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while (!(read_STAT(drv_data) & BIT_STAT_SPIF) && limit--)
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while (!(read_STAT(drv_data) & BIT_STAT_SPIF) && --limit)
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cpu_relax();
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cpu_relax();
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write_STAT(drv_data, BIT_STAT_CLR);
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write_STAT(drv_data, BIT_STAT_CLR);
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