| Message ID | 1444682596-3065-2-git-send-email-Julia.Lawall@lip6.fr (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 12/10/15 23:43, Julia Lawall wrote: > Device node iterators perform an of_node_put on each iteration, so putting > an of_node_put before a continue results in a double put. > > A simplified version of the semantic match that finds this problem is as > follows (http://coccinelle.lip6.fr): > > // <smpl> > @@ > expression root,e; > local idexpression child; > iterator i; > @@ > > i(..., child, ...) { > ... when != of_node_get(child) > * of_node_put(child); > ... > * continue; > } > // </smpl> > > Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> > > --- > drivers/video/fbdev/omap2/dss/omapdss-boot-init.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) Thanks, queued for 4.5. Tomi
diff --git a/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c b/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c index 8b6f6d5..136d304 100644 --- a/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c +++ b/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c @@ -199,10 +199,8 @@ static int __init omapdss_boot_init(void) omapdss_walk_device(dss, true); for_each_available_child_of_node(dss, child) { - if (!of_find_property(child, "compatible", NULL)) { - of_node_put(child); + if (!of_find_property(child, "compatible", NULL)) continue; - } omapdss_walk_device(child, true); }
Device node iterators perform an of_node_put on each iteration, so putting an of_node_put before a continue results in a double put. A simplified version of the semantic match that finds this problem is as follows (http://coccinelle.lip6.fr): // <smpl> @@ expression root,e; local idexpression child; iterator i; @@ i(..., child, ...) { ... when != of_node_get(child) * of_node_put(child); ... * continue; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> --- drivers/video/fbdev/omap2/dss/omapdss-boot-init.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html