From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Nelson Date: Tue, 8 Dec 2015 09:17:44 -0700 Subject: [U-Boot] [PATCH 2/2] net: fec_mxc: unregister mdio bus on probe error In-Reply-To: <1449589126-10530-2-git-send-email-mans@mansr.com> References: <1449589126-10530-1-git-send-email-mans@mansr.com> <1449589126-10530-2-git-send-email-mans@mansr.com> Message-ID: <566702A8.6030400@nelint.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Mans, On 12/08/2015 08:38 AM, Mans Rullgard wrote: > If fecmxc_initialize_multi() fails, it frees but does not unregister > the mdio bus, causing subsequent uses of the "mii" command to crash. > Fix this by adding mdio_unregister() calls where needed. > > Signed-off-by: Mans Rullgard > --- > drivers/net/fec_mxc.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c > index 1250d2a..6c5e80b 100644 > --- a/drivers/net/fec_mxc.c > +++ b/drivers/net/fec_mxc.c > @@ -1109,6 +1109,7 @@ int fecmxc_initialize_multi(bd_t *bd, int dev_id, int phy_id, uint32_t addr) > #ifdef CONFIG_PHYLIB > phydev = phy_find_by_mask(bus, 1 << phy_id, PHY_INTERFACE_MODE_RGMII); > if (!phydev) { > + mdio_unregister(bus); While you're in here, this should probably be mdio_free just to prevent somebody else from searching as I did. > free(bus); > return -ENOMEM; > } > @@ -1120,6 +1121,7 @@ int fecmxc_initialize_multi(bd_t *bd, int dev_id, int phy_id, uint32_t addr) > #ifdef CONFIG_PHYLIB > free(phydev); > #endif > + mdio_unregister(bus); Ditto: > free(bus); > } > return ret; > Otherwise, Reviewed-by: Eric Nelson