Re: [PATCH] drm/gma500/oaktrail_lvds: replace continue with break
From: Dan Carpenter <hidden>
Date: 2021-06-19 13:40:51
Also in:
dri-devel, lkml
On Fri, Jun 18, 2021 at 07:35:24PM +0100, Colin King wrote:
quoted hunk ↗ jump to hunk
From: Colin Ian King <redacted> Currently a loop scans through the connector list checking for connectors that do not match a specific criteria. The use of the continue statement is a little unintuitive and can confuse static analysis checking. Invert the criteria matching logic and use a break to terminate the loop once the first suitable connector has been found. Thanks to Patrik Jakobsson for explaining the original intent of the code and suggesting this change. Addresses-Coverity: ("Continue has no effect") Signed-off-by: Colin Ian King <redacted> --- drivers/gpu/drm/gma500/oaktrail_lvds.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)diff --git a/drivers/gpu/drm/gma500/oaktrail_lvds.c b/drivers/gpu/drm/gma500/oaktrail_lvds.c index 432bdcc57ac9..8541dcf237eb 100644 --- a/drivers/gpu/drm/gma500/oaktrail_lvds.c +++ b/drivers/gpu/drm/gma500/oaktrail_lvds.c@@ -113,8 +113,8 @@ static void oaktrail_lvds_mode_set(struct drm_encoder *encoder, /* Find the connector we're trying to set up */ list_for_each_entry(connector, &mode_config->connector_list, head) { - if (!connector->encoder || connector->encoder->crtc != crtc) - continue; + if (connector->encoder && connector->encoder->crtc == crtc) + break; } if (!connector) {
This test is wrong/impossible. It should be:
if (list_entry_is_head(connector, &mode_config->connector_list,
head)) {
regards,
dan carpenter