From: Yang Yingliang yangyingliang@huawei.com
stable inclusion from stable-v5.10.137 commit d6d344eeef7ae6be1e018b82439f1504775cc177 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I60PLB
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 628ccfc8f5f79dd548319408fcc53949fe97b258 ]
The 'pdev' and 'netdev' need to be released in error cases of iss_net_configure().
Change the return type of iss_net_configure() to void, because it's not used.
Fixes: 7282bee78798 ("[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 8") Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com Signed-off-by: Max Filippov jcmvbkbc@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Reviewed-by: Wei Li liwei391@huawei.com --- arch/xtensa/platforms/iss/network.c | 32 ++++++++++++++--------------- 1 file changed, 15 insertions(+), 17 deletions(-)
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c index 4801df4e73e1..08d70c868c13 100644 --- a/arch/xtensa/platforms/iss/network.c +++ b/arch/xtensa/platforms/iss/network.c @@ -511,16 +511,15 @@ static void iss_net_pdev_release(struct device *dev) free_netdev(lp->dev); }
-static int iss_net_configure(int index, char *init) +static void iss_net_configure(int index, char *init) { struct net_device *dev; struct iss_net_private *lp; - int err;
dev = alloc_etherdev(sizeof(*lp)); if (dev == NULL) { pr_err("eth_configure: failed to allocate device\n"); - return 1; + return; }
/* Initialize private element. */ @@ -549,7 +548,7 @@ static int iss_net_configure(int index, char *init) if (!tuntap_probe(lp, index, init)) { pr_err("%s: invalid arguments. Skipping device!\n", dev->name); - goto errout; + goto err_free_netdev; }
pr_info("Netdevice %d (%pM)\n", index, dev->dev_addr); @@ -557,7 +556,8 @@ static int iss_net_configure(int index, char *init) /* sysfs register */
if (!driver_registered) { - platform_driver_register(&iss_net_driver); + if (platform_driver_register(&iss_net_driver)) + goto err_free_netdev; driver_registered = 1; }
@@ -568,7 +568,8 @@ static int iss_net_configure(int index, char *init) lp->pdev.id = index; lp->pdev.name = DRIVER_NAME; lp->pdev.dev.release = iss_net_pdev_release; - platform_device_register(&lp->pdev); + if (platform_device_register(&lp->pdev)) + goto err_free_netdev; SET_NETDEV_DEV(dev, &lp->pdev.dev);
dev->netdev_ops = &iss_netdev_ops; @@ -577,23 +578,20 @@ static int iss_net_configure(int index, char *init) dev->irq = -1;
rtnl_lock(); - err = register_netdevice(dev); - rtnl_unlock(); - - if (err) { + if (register_netdevice(dev)) { + rtnl_unlock(); pr_err("%s: error registering net device!\n", dev->name); - /* XXX: should we call ->remove() here? */ - free_netdev(dev); - return 1; + platform_device_unregister(&lp->pdev); + return; } + rtnl_unlock();
timer_setup(&lp->tl, iss_net_user_timer_expire, 0);
- return 0; + return;
-errout: - /* FIXME: unregister; free, etc.. */ - return -EIO; +err_free_netdev: + free_netdev(dev); }
/* ------------------------------------------------------------------------- */