Messages in this thread Patch in this message | | | Date | Sun, 8 Nov 2009 13:06:53 GMT | From | tip-bot for Cyrill Gorcunov <> | Subject | [tip:irq/core] irq: Do not attempt to create subdirectories if /proc/irq/<irq> failed |
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Commit-ID: c82a43d40b93200a10a9fec0a489791e65e135ca Gitweb: http://git.kernel.org/tip/c82a43d40b93200a10a9fec0a489791e65e135ca Author: Cyrill Gorcunov <gorcunov@openvz.org> AuthorDate: Mon, 26 Oct 2009 23:28:11 +0300 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Sun, 8 Nov 2009 13:14:22 +0100
irq: Do not attempt to create subdirectories if /proc/irq/<irq> failed
If a parent directory (ie /proc/irq/<irq>) could not be created we should not attempt to create subdirectories. Otherwise it would lead that "smp_affinity" and "spurious" entries are may be registered under /proc root instead of a proper place.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <20091026202811.GD5321@lenovo> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- kernel/irq/proc.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index 692363d..dfef5b9 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -214,6 +214,8 @@ void register_irq_proc(unsigned int irq, struct irq_desc *desc) /* create /proc/irq/1234 */ desc->dir = proc_mkdir(name, root_irq_dir); + if (!desc->dir) + return; #ifdef CONFIG_SMP /* create /proc/irq/<irq>/smp_affinity */
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