Author: Julia Lawall <julia@diku.dk> Use the call to snd_card_free in the error handling code at the end of the function, as in the other error cases. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @@ expression E,E2; @@ snd_card_free(E) … ( E = E2 | * E …