diff options
| author | Ben Hutchings <ben@decadent.org.uk> | 2015-09-26 12:23:56 +0100 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2016-08-26 20:45:01 +0200 |
| commit | 6ecd31e103406ba7d98a8159c9097895069b9b6a (patch) | |
| tree | bede8c8eff59ed4c2cff95e205599d9b673064d7 /include/linux/stringify.h | |
| parent | d4915b2fa95f0f51dabaa3bd0db3511a4f8aa068 (diff) | |
genirq: Fix race in register_irq_proc()
commit 95c2b17534654829db428f11bcf4297c059a2a7e upstream.
Per-IRQ directories in procfs are created only when a handler is first
added to the irqdesc, not when the irqdesc is created. In the case of
a shared IRQ, multiple tasks can race to create a directory. This
race condition seems to have been present forever, but is easier to
hit with async probing.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Link: http://lkml.kernel.org/r/1443266636.2004.2.camel@decadent.org.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stefan Guendhoer <stefan@guendhoer.com>
Diffstat (limited to 'include/linux/stringify.h')
0 files changed, 0 insertions, 0 deletions