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Julia Lawall
d80cba6c53
Test the just-initialized value rather than some other one. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ identifier x,y,f!={PTR_ERR,ERR_PTR,ERR_CAST}; statement S; @@ x = f(...); ( if (\(x == NULL\|IS_ERR(x)\)) S | *if (\(y == NULL\|IS_ERR(y)\)) { ... when != x return ...; } ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>