From: Julia Lawall <[EMAIL PROTECTED]> Of_get_parent and of_find_compatible_node do a of_node_get, and thus a corresponding of_code_put is needed in both the error case and the normal return case.
The problem was found using the following semantic match. (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T,T1,T2; identifier E; statement S; expression x1,x2,x3; int ret; @@ T E; ... * E = \(of_get_parent\|of_find_compatible_node\)(...); if (E == NULL) S ... when != of_node_put(...,(T1)E,...) when != if (E != NULL) { ... of_node_put(...,(T1)E,...); ...} when != x1 = (T1)E when != E = x3; when any if (...) { ... when != of_node_put(...,(T2)E,...) when != if (E != NULL) { ... of_node_put(...,(T2)E,...); ...} when != x2 = (T2)E ( * return; | * return ret; ) } // </smpl> Signed-off-by: Julia Lawall <[EMAIL PROTECTED]> --- diff -u -p a/arch/powerpc/platforms/82xx/mpc8272_ads.c b/arch/powerpc/platforms/82xx/mpc8272_ads.c --- a/arch/powerpc/platforms/82xx/mpc8272_ads.c 2007-10-22 11:24:59.000000000 +0200 +++ b/arch/powerpc/platforms/82xx/mpc8272_ads.c 2008-01-01 14:35:37.000000000 +0100 @@ -134,13 +134,12 @@ static void __init mpc8272_ads_setup_arc } bcsr = of_iomap(np, 0); + of_node_put(np); if (!bcsr) { printk(KERN_ERR "Cannot map BCSR registers\n"); return; } - of_node_put(np); - clrbits32(&bcsr[1], BCSR1_RS232_EN1 | BCSR1_RS232_EN2 | BCSR1_FETHIEN); setbits32(&bcsr[1], BCSR1_FETH_RST); diff -u -p a/arch/powerpc/platforms/82xx/pq2fads.c b/arch/powerpc/platforms/82xx/pq2fads.c --- a/arch/powerpc/platforms/82xx/pq2fads.c 2007-10-22 11:24:59.000000000 +0200 +++ b/arch/powerpc/platforms/82xx/pq2fads.c 2008-01-01 14:36:28.000000000 +0100 @@ -130,13 +130,12 @@ static void __init pq2fads_setup_arch(vo } bcsr = of_iomap(np, 0); + of_node_put(np); if (!bcsr) { printk(KERN_ERR "Cannot map BCSR registers\n"); return; } - of_node_put(np); - /* Enable the serial and ethernet ports */ clrbits32(&bcsr[1], BCSR1_RS232_EN1 | BCSR1_RS232_EN2 | BCSR1_FETHIEN); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
