From: Julia Lawall <ju...@diku.dk> np is initialized to the result of calling a function that calls of_node_get, so of_node_put should be called before the pointer is dropped.
The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e,e1,e2; @@ * e = \(of_find_node_by_type\|of_find_node_by_name\)(...) ... when != of_node_put(e) when != true e == NULL when != e2 = e e = e1 // </smpl> Signed-off-by: Julia Lawall <ju...@diku.dk> --- arch/powerpc/platforms/powermac/setup.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 96580b1..970ea1d 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -494,11 +494,15 @@ static int __init pmac_declare_of_platform_devices(void) return -1; np = of_find_node_by_name(NULL, "valkyrie"); - if (np) + if (np) { of_platform_device_create(np, "valkyrie", NULL); + of_node_put(np); + } np = of_find_node_by_name(NULL, "platinum"); - if (np) + if (np) { of_platform_device_create(np, "platinum", NULL); + of_node_put(np); + } np = of_find_node_by_type(NULL, "smu"); if (np) { of_platform_device_create(np, "smu", NULL); _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
