| Message ID | 1550928043-14889-8-git-send-email-Julia.Lawall@lip6.fr (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | add missing of_node_put after of_device_is_available | expand |
On 2/23/2019 6:50 PM, Julia Lawall wrote: > Add an of_node_put when a tested device node is not available. > > The semantic patch that fixes this problem is as follows > (http://coccinelle.lip6.fr): > > // <smpl> > @@ > identifier f; > local idexpression e; > expression x; > @@ > > e = f(...); > ... when != of_node_put(e) > when != x = e > when != e = x > when any > if (<+...of_device_is_available(e)...+>) { > ... when != of_node_put(e) > ( > return e; > | > + of_node_put(e); > return ...; > ) > } > // </smpl> > > Fixes: f2dd36ac9974c ("OMAPDSS: move 'compatible' converter to omapdss driver") > Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Cheers, -Mukesh > > --- > drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff -u -p a/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c b/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c > --- a/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c > +++ b/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c > @@ -192,8 +192,10 @@ static int __init omapdss_boot_init(void > > dss = of_find_matching_node(NULL, omapdss_of_match); > > - if (dss == NULL || !of_device_is_available(dss)) > + if (dss == NULL || !of_device_is_available(dss)) { > + of_node_put(dss); > return 0; > + } > > omapdss_walk_device(dss, true); > >
diff -u -p a/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c b/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c --- a/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c +++ b/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c @@ -192,8 +192,10 @@ static int __init omapdss_boot_init(void dss = of_find_matching_node(NULL, omapdss_of_match); - if (dss == NULL || !of_device_is_available(dss)) + if (dss == NULL || !of_device_is_available(dss)) { + of_node_put(dss); return 0; + } omapdss_walk_device(dss, true);
Add an of_node_put when a tested device node is not available. The semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // <smpl> @@ identifier f; local idexpression e; expression x; @@ e = f(...); ... when != of_node_put(e) when != x = e when != e = x when any if (<+...of_device_is_available(e)...+>) { ... when != of_node_put(e) ( return e; | + of_node_put(e); return ...; ) } // </smpl> Fixes: f2dd36ac9974c ("OMAPDSS: move 'compatible' converter to omapdss driver") Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> --- drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)