From: Anirudh Rayabharam Date: Mon, 3 May 2021 11:56:44 +0000 (+0200) Subject: net/smc: properly handle workqueue allocation failure X-Git-Tag: v5.10.42~112 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=62c2472aeee411260dae6fabc8248eedf2e3b94d;p=thirdparty%2Fkernel%2Fstable.git net/smc: properly handle workqueue allocation failure [ Upstream commit bbeb18f27a44ce6adb00d2316968bc59dc640b9b ] In smcd_alloc_dev(), if alloc_ordered_workqueue() fails, properly catch it, clean up and return NULL to let the caller know there was a failure. Move the call to alloc_ordered_workqueue higher in the function in order to abort earlier without needing to unwind the call to device_initialize(). Cc: Ursula Braun Cc: David S. Miller Signed-off-by: Anirudh Rayabharam Link: https://lore.kernel.org/r/20210503115736.2104747-18-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- diff --git a/net/smc/smc_ism.c b/net/smc/smc_ism.c index b4a9fe452470f..024ca21392f7c 100644 --- a/net/smc/smc_ism.c +++ b/net/smc/smc_ism.c @@ -304,6 +304,14 @@ struct smcd_dev *smcd_alloc_dev(struct device *parent, const char *name, return NULL; } + smcd->event_wq = alloc_ordered_workqueue("ism_evt_wq-%s)", + WQ_MEM_RECLAIM, name); + if (!smcd->event_wq) { + kfree(smcd->conn); + kfree(smcd); + return NULL; + } + smcd->dev.parent = parent; smcd->dev.release = smcd_release; device_initialize(&smcd->dev); @@ -317,8 +325,6 @@ struct smcd_dev *smcd_alloc_dev(struct device *parent, const char *name, INIT_LIST_HEAD(&smcd->vlan); INIT_LIST_HEAD(&smcd->lgr_list); init_waitqueue_head(&smcd->lgrs_deleted); - smcd->event_wq = alloc_ordered_workqueue("ism_evt_wq-%s)", - WQ_MEM_RECLAIM, name); return smcd; } EXPORT_SYMBOL_GPL(smcd_alloc_dev);