mdev : bug corrected (patch attached) - recursive_action version

[Renaud Cerrato]

Oups, sorry.. Just corrected, attached patch modified in consequence.

Size benchmark (Intel, defconfig):

Busybox before :
   text    data     bss     dec     hex filename
 567869    3008   46992  617869   96d8d busybox

Busybox  patched :
   text    data     bss     dec     hex filename
 567821    3008   46992  617821   96d5d busybox
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