Hi! On Wed, Nov 07, 2018 at 02:34:23AM +0000, YueHaibing wrote: > Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR > > Signed-off-by: YueHaibing <[email protected]> > --- > drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c | 5 +---- > 1 file changed, 1 insertion(+), 4 deletions(-) > > diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c > b/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c > index fb985ba..3d5ee6f 100644 > --- a/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c > +++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c > @@ -232,8 +232,5 @@ int sun4i_tmds_create(struct sun4i_hdmi *hdmi) > tmds->div_offset = hdmi->variant->tmds_clk_div_offset; > > hdmi->tmds_clk = devm_clk_register(hdmi->dev, &tmds->hw); > - if (IS_ERR(hdmi->tmds_clk)) > - return PTR_ERR(hdmi->tmds_clk); > - > - return 0; > + return PTR_ERR_OR_ZERO(hdmi->tmds_clk);
While this is technically correct (and I appreciate that this is also a matter of taste), I find the former syntax to be clearer and easier to extend if needed. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
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