3.16.57-rc1 review patch. If anyone has any objections, please let me know.
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From: Julia Lawall Julia.Lawall@lip6.fr
commit 6c131850eca653344c41d68ce87f3ab5a89af89e upstream.
Convert a zero return value on error to a negative one, as returned elsewhere in the function.
A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/)
// <smpl> ( if@p1 ((ret < 0|ret != 0)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; }
// </smpl>
Signed-off-by: Julia Lawall Julia.Lawall@lip6.fr Acked-by: Nicolas Ferre nicolas.ferre@atmel.com Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com Signed-off-by: Ben Hutchings ben@decadent.org.uk --- drivers/video/fbdev/atmel_lcdfb.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/video/fbdev/atmel_lcdfb.c +++ b/drivers/video/fbdev/atmel_lcdfb.c @@ -1101,12 +1101,14 @@ static int atmel_lcdfb_of_init(struct at timings = of_get_display_timings(display_np); if (!timings) { dev_err(dev, "failed to get display timings\n"); + ret = -EINVAL; goto put_display_node; }
timings_np = of_find_node_by_name(display_np, "display-timings"); if (!timings_np) { dev_err(dev, "failed to find display-timings node\n"); + ret = -ENODEV; goto put_display_node; }