From: Chen-Yu Tsai <wens@csie.org>
To: Mauro Carvalho Chehab <mchehab@osg.samsung.com>,
Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>, Hans de Goede <hdegoede@redhat.com>,
linux-media@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] [media] rc: sunxi-cir: Initialize the spinlock properly
Date: Tue, 22 Dec 2015 12:27:35 +0800 [thread overview]
Message-ID: <1450758455-22945-1-git-send-email-wens@csie.org> (raw)
The driver allocates the spinlock but fails to initialize it correctly.
The kernel reports a BUG indicating bad spinlock magic when spinlock
debugging is enabled.
Call spin_lock_init() on it to initialize it correctly.
Fixes: b4e3e59fb59c ("[media] rc: add sunxi-ir driver")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
drivers/media/rc/sunxi-cir.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/rc/sunxi-cir.c b/drivers/media/rc/sunxi-cir.c
index 7830aef3db45..40f77685cc4a 100644
--- a/drivers/media/rc/sunxi-cir.c
+++ b/drivers/media/rc/sunxi-cir.c
@@ -153,6 +153,8 @@ static int sunxi_ir_probe(struct platform_device *pdev)
if (!ir)
return -ENOMEM;
+ spin_lock_init(&ir->ir_lock);
+
if (of_device_is_compatible(dn, "allwinner,sun5i-a13-ir"))
ir->fifo_size = 64;
else
--
2.6.4
next reply other threads:[~2015-12-22 4:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-22 4:27 Chen-Yu Tsai [this message]
2015-12-22 11:43 ` Hans de Goede
2015-12-22 20:38 ` Maxime Ripard
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1450758455-22945-1-git-send-email-wens@csie.org \
--to=wens@csie.org \
--cc=hdegoede@redhat.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=maxime.ripard@free-electrons.com \
--cc=mchehab@osg.samsung.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®