From: "Alvaro G. M" <alvaro.gamez@xxxxxxxxxx> Date: Wed, 25 Sep 2019 13:05:43 +0200 > Hi, Dan > > On Wed, Sep 25, 2019 at 01:59:11PM +0300, Dan Carpenter wrote: >> The "lp->phy_mode" is an enum but in this context GCC treats it as an >> unsigned int so the error handling is never triggered. >> >> lp->phy_mode = of_get_phy_mode(pdev->dev.of_node); >> - if (lp->phy_mode < 0) { >> + if ((int)lp->phy_mode < 0) { > > This (almost) exact code appears in a lot of different drivers too, > so maybe it'd be nice to review them all and apply the same cast if needed? Or make the thing an int if negative values are never valid 32-bit phy_mode values anyways.