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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Pavan Chebbi , Michael Chan , Potnuri Bharat Teja , Tony Nguyen , Przemek Kitszel , Taras Chornyi , Maxime Coquelin , Alexandre Torgue , Iyappan Subramanian , Keyur Chudgar , Quan Nguyen , Heiner Kallweit Subject: Re: [PATCH 38/61] net: Prefer IS_ERR_OR_NULL over manual NULL check Message-ID: References: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de> <20260310-b4-is_err_or_null-v1-38-bd63b656022d@avm.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260310-b4-is_err_or_null-v1-38-bd63b656022d@avm.de> X-Rspam-User: X-Stat-Signature: yzqrex54uyr4abbgfjzsfiwjs537giea X-Rspamd-Queue-Id: 9A9DE180011 X-Rspamd-Server: rspam03 X-HE-Tag: 1773188189-583068 X-HE-Meta: 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 rYQ7azFX eEvc9hwBiimlEUx/09tJojQCzPvSQwPMQ3jnOL8RrUBhq1UqwbKktKUIJmn0hdrEdz8r2ji3D5LreTWJLzG6KlVjuFA9vrEndbq+YGFhi0RP/H9+dddqZp9/elGtOcN1LthyqjEQyfxVXwAbJjhUSCBytSbmEQMyqcV5hfsDJXBrlmHlfeyR3hEk04CE615snRk26/dJoAxRsYHLp90hhxIAEX0cBOzUegp0w Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Mar 10, 2026 at 12:49:04PM +0100, Philipp Hahn wrote: > diff --git a/drivers/net/mdio/mdio-xgene.c b/drivers/net/mdio/mdio-xgene.c > index a8f91a4b7fed0927ee14e408000cd3a2bfb9b09a..09b30b563295c6085dc1358ac361301e5cf6b2a8 100644 > --- a/drivers/net/mdio/mdio-xgene.c > +++ b/drivers/net/mdio/mdio-xgene.c > @@ -265,7 +265,7 @@ struct phy_device *xgene_enet_phy_register(struct mii_bus *bus, int phy_addr) > struct phy_device *phy_dev; > > phy_dev = get_phy_device(bus, phy_addr, false); > - if (!phy_dev || IS_ERR(phy_dev)) > + if (IS_ERR_OR_NULL(phy_dev)) As noted in reply to your cover message, the check for NULL here is incorrect - get_phy_device() returns either a valid pointer or an error pointer, but never NULL. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!