From mboxrd@z Thu Jan 1 00:00:00 1970 From: johan@kernel.org (Johan Hovold) Date: Fri, 31 Jul 2015 11:49:28 +0200 Subject: [PATCH 0/9] gpiolib: Add GPIO name support In-Reply-To: References: <1437125570-28623-1-git-send-email-mpa@pengutronix.de> <20150721095457.GA9981@pengutronix.de> <20150721101037.GB20023@pengutronix.de> Message-ID: <20150731094928.GQ28535@localhost> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Jul 30, 2015 at 05:13:37PM -0700, Arun Bharadwaj wrote: > 2) Some times I get a kernel dump when I try to unexport the gpio or even > when I try to read the "name" file. This is not very repeatable and seems > to happen at random. I haven't had the time to look into this in more > detail yet, but here's the dump FWIW: http://pastebin.com/xq9cpCQE This is probably because of patch 8/9 erroneously taking the sysfs_lock in gpio_name_show. Johan