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From: Arnd Bergmann <arnd@arndb.de>
To: Amit Shah <amit.shah@redhat.com>
Cc: Sasha Levin <sasha.levin@oracle.com>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	virtualization@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] virtio_console: correct error message on failure of debugfs_create_dir
Date: Mon, 24 Dec 2012 11:55:46 +0000	[thread overview]
Message-ID: <201212241155.46866.arnd@arndb.de> (raw)
In-Reply-To: <20121221075909.GA15739@amit.redhat.com>

On Friday 21 December 2012, Amit Shah wrote:
> On (Thu) 20 Dec 2012 [14:11:21], Sasha Levin wrote:
> > debugfs_create_dir() returns NULL if it fails, there's little point in
> > calling PTR_ERR on it.
>
> debugfs_create_dir() does return an error value if debugfs is not
> enabled.
> 
> This check for !pdrvdata.debugfs_dir should infact use
> IS_ERR_OR_NULL().  Care to submit a patch for that?

How about we fix the stub instead to return NULL when debugfs is disabled?

	Arnd

  parent reply	other threads:[~2012-12-24 11:55 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-20 19:11 [PATCH] tools, power: correct precedence of operators in init_maxfreq_mode Sasha Levin
2012-12-20 19:11 ` [PATCH] kvm tools: remove unneeded checks in qcow code Sasha Levin
2012-12-21 22:03   ` Jesper Juhl
2012-12-20 19:11 ` [PATCH] kvm tools: remove unneeded check from disk code Sasha Levin
2012-12-20 19:11 ` [PATCH] kvm tools: correctly compare pointer with NULL instead of 0 Sasha Levin
2012-12-20 19:11 ` [PATCH] tools lib traceevent: remove redundant check from process_dynamic_array Sasha Levin
2012-12-21 12:58   ` Namhyung Kim
2012-12-20 19:11 ` [PATCH] epoll: stop comparing pointers with 0 in self-test app Sasha Levin
2012-12-21  2:55   ` Daniel Hazelton
2012-12-20 19:11 ` [PATCH] tools/usb: remove unneeded 'continue' and simplify condition Sasha Levin
2012-12-20 20:32   ` Felipe Balbi
2012-12-20 19:11 ` [PATCH] perf kmem: use ARRAY_SIZE instead of reinventing it Sasha Levin
2013-01-25 11:19   ` [tip:perf/core] " tip-bot for Sasha Levin
2012-12-20 19:11 ` [PATCH] cpupowerutils: don't compare pointers with 0 Sasha Levin
2012-12-21 21:41   ` Thomas Renninger
2012-12-20 19:11 ` [PATCH] m2m-deinterlace: use correct check for kzalloc failure Sasha Levin
2012-12-20 19:11 ` [PATCH] perf script: use ARRAY_SIZE instead of reinventing it Sasha Levin
2013-01-25 11:20   ` [tip:perf/core] " tip-bot for Sasha Levin
2012-12-20 19:11 ` [PATCH] perf tools: remove redundant checks from _sort__sym_cmp Sasha Levin
2012-12-21 12:55   ` Namhyung Kim
2013-01-25 11:17   ` [tip:perf/core] " tip-bot for Sasha Levin
2012-12-20 19:11 ` [PATCH] virtio_console: correct error message on failure of debugfs_create_dir Sasha Levin
2012-12-21  7:59   ` Amit Shah
2012-12-21  7:59     ` Amit Shah
2012-12-24 11:55     ` Arnd Bergmann
2012-12-24 11:55     ` Arnd Bergmann [this message]
2012-12-24 17:39       ` Greg Kroah-Hartman
2012-12-24 17:39         ` Greg Kroah-Hartman
2012-12-24 18:24         ` Sasha Levin
2012-12-24 18:24           ` Sasha Levin
2012-12-24 18:43           ` Greg Kroah-Hartman
2012-12-24 18:43             ` Greg Kroah-Hartman
2012-12-20 19:11 ` Sasha Levin
2012-12-20 19:11 ` [PATCH] debugfs: remove redundant initialization of dentry Sasha Levin
2012-12-20 19:11 ` [PATCH] PCI: cpqphp: minor cleanup and removal of unreachable paths Sasha Levin
2013-01-07 18:48   ` Bjorn Helgaas
2012-12-20 19:11 ` [PATCH] bnx2x: use ARRAY_SIZE where possible Sasha Levin
2012-12-23  8:49   ` Eilon Greenstein
2012-12-28  4:30     ` David Miller
2012-12-20 19:11 ` [PATCH] wireless: mwifiex: remove unreachable paths Sasha Levin
2012-12-20 20:13   ` Bing Zhao
2012-12-20 19:11 ` [PATCH] mmc: omap_hsmmc: correct precedence of operators Sasha Levin
2012-12-20 20:30   ` Felipe Balbi
2012-12-20 20:30     ` Felipe Balbi
2012-12-20 23:04   ` Paul Walmsley
2012-12-20 19:11 ` [PATCH] kdb: use ARRAY_SIZE where possible Sasha Levin
2012-12-20 19:11 ` [PATCH] rcutorture: don't compare ptr with 0 Sasha Levin
2012-12-20 22:39   ` Josh Triplett
2013-01-04 17:27     ` Paul E. McKenney
2012-12-20 19:11 ` [PATCH] sched: fair: simplify can_migrate_task a bit Sasha Levin
2012-12-20 19:11 ` [PATCH] uprobes: remove redundant check Sasha Levin
2013-01-25 11:21   ` [tip:perf/core] " tip-bot for Sasha Levin
     [not found] ` <1356030701-16284-1-git-send-email-sasha.levin-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2012-12-20 19:11   ` [PATCH] cgroup: " Sasha Levin
2012-12-20 19:11     ` Sasha Levin
     [not found]     ` <1356030701-16284-23-git-send-email-sasha.levin-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2012-12-20 19:18       ` Tejun Heo
2012-12-20 19:18         ` Tejun Heo
     [not found]         ` <20121220191803.GA14527-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2012-12-20 19:24           ` Sasha Levin
2012-12-20 19:24             ` Sasha Levin
2012-12-20 19:11 ` [PATCH] mm: memory_hotplug: no need to check res twice in add_memory Sasha Levin
2012-12-20 19:11   ` Sasha Levin
2012-12-20 19:11 ` [PATCH] x86, efi: correct precedence of operators in setup_efi_pci Sasha Levin
2012-12-20 19:59   ` [tip:x86/urgent] " tip-bot for Sasha Levin
2012-12-20 19:11 ` [PATCH] arch/x86/platform/uv: use ARRAY_SIZE where possible Sasha Levin
2012-12-20 22:37   ` [tip:x86/cleanups] " tip-bot for Sasha Levin
2012-12-20 19:11 ` [PATCH] um: don't compare a pointer to 0 Sasha Levin
2012-12-20 22:39   ` [tip:x86/cleanups] " tip-bot for Sasha Levin
2012-12-20 19:11 ` [PATCH] x86, apb_timer: remove unused variable percpu_timer Sasha Levin
2012-12-20 22:40   ` [tip:x86/cleanups] " tip-bot for Sasha Levin
2012-12-20 19:11 ` [PATCH] kdb: use DIV_ROUND_UP where possible Sasha Levin
2012-12-20 19:11 ` [PATCH] mm/sparse: don't check return value of alloc_bootmem calls Sasha Levin
2012-12-20 19:11   ` Sasha Levin
2012-12-20 20:23   ` David Rientjes
2012-12-20 20:23     ` David Rientjes
2012-12-20 20:36     ` Sasha Levin
2012-12-20 20:36       ` Sasha Levin
2012-12-20 20:43       ` David Rientjes
2012-12-20 20:43         ` David Rientjes
2012-12-20 19:11 ` [PATCH] slob: use DIV_ROUND_UP where possible Sasha Levin
2012-12-20 19:11   ` Sasha Levin
2012-12-20 19:40   ` Christoph Lameter
2012-12-20 19:40     ` Christoph Lameter

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