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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> |
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| .. | ||
| altera_msgdma.c | ||
| altera_msgdma.h | ||
| altera_msgdmahw.h | ||
| altera_sgdma.c | ||
| altera_sgdma.h | ||
| altera_sgdmahw.h | ||
| altera_tse_ethtool.c | ||
| altera_tse_main.c | ||
| altera_tse.h | ||
| altera_utils.c | ||
| altera_utils.h | ||
| Kconfig | ||
| Makefile | ||