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Typically, the return value desired for the failure of a function with an integer return value is a negative integer. In these cases, the return value is sometimes a negative integer and sometimes 0, due to a subsequent initialization of the return variable within the loop. A simplified version of the semantic match that finds this problem is: (http://coccinelle.lip6.fr/) //<smpl> @r exists@ identifier ret; position p; constant C; expression e1,e3,e4; statement S; @@ ret = -C ... when != ret = e3 when any if@p (...) S ... when any if (\(ret != 0\|ret < 0\|ret > 0\) || ...) { ... return ...; } ... when != ret = e3 when any *if@p (...) { ... when != ret = e4 return ret; } //</smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> |
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| .. | ||
| c_can | ||
| cc770 | ||
| mscan | ||
| sja1000 | ||
| softing | ||
| usb | ||
| at91_can.c | ||
| bfin_can.c | ||
| dev.c | ||
| flexcan.c | ||
| janz-ican3.c | ||
| Kconfig | ||
| Makefile | ||
| mcp251x.c | ||
| pch_can.c | ||
| slcan.c | ||
| ti_hecc.c | ||
| vcan.c | ||