22 Aug
2011
22 Aug
'11
3:55 p.m.
Julia Lawall wrote:
From: Julia Lawall julia@diku.dk
dma_channel_np has been accessed at this point, so decrease its reference count before leaving the function.
A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/)
// <smpl> @@ identifier x; expression E1!=0,E2,E3,E4; statement S; iterator I; @@
( if (...) { ... when != of_node_put(x) when != x = E3 when != E3 = x
- return ...;
} ... when != x = E2 when != I(...,x,...) S if (...) { ... when != x = E4 of_node_put(x); ... return ...; } ) // </smpl>
Signed-off-by: Julia Lawall julia@diku.dk
Acked-by: Timur Tabi timur@freescale.com
Thanks, Julia.
--
Timur Tabi
Linux kernel developer at Freescale