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linux/drivers
Tomonori Sakita 6571ebce11 net: altera_tse: fix msgdma_tx_completion on non-zero fill_level case
If fill_level was not zero and status was not BUSY,
result of "tx_prod - tx_cons - inuse" might be zero.
Subtracting 1 unconditionally results invalid negative return value
on this case.
Make sure not to return an negative value.

Signed-off-by: Tomonori Sakita <tomonori.sakita@sord.co.jp>
Signed-off-by: Atsushi Nemoto <atsushi.nemoto@sord.co.jp>
Reviewed-by: Dalon L Westergreen <dalon.westergreen@linux.intel.com>
Acked-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-27 10:39:07 -08:00
..
2018-12-29 08:20:44 -07:00
2019-01-09 19:20:31 -05:00
2019-01-11 00:15:04 +01:00
2018-12-24 12:06:56 +01:00
2019-01-22 20:54:00 -05:00