From: Brad Harper <bjharper@gmail.com>
To: linux-amlogic@lists.infradead.org, linux-mmc@vger.kernel.org
Cc: Brad Harper <bjharper@gmail.com>,
linux-rt-users@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/1] mmc: host: meson-gx-mmc: fix possible deadlock condition for preempt_rt
Date: Sat, 26 Sep 2020 22:54:18 -0400 [thread overview]
Message-ID: <20200927025418.12382-2-bjharper@gmail.com> (raw)
In-Reply-To: <20200927025418.12382-1-bjharper@gmail.com>
---
drivers/mmc/host/meson-gx-mmc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index 08a3b1c05..3ba8f988d 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -146,6 +146,7 @@ struct sd_emmc_desc {
};
struct meson_host {
+ spinlock_t lock;
struct device *dev;
struct meson_mmc_data *data;
struct mmc_host *mmc;
@@ -1051,6 +1052,7 @@ static int meson_mmc_probe(struct platform_device *pdev)
host->mmc = mmc;
host->dev = &pdev->dev;
dev_set_drvdata(&pdev->dev, host);
+ spin_lock_init(&host->lock);
/* The G12A SDIO Controller needs an SRAM bounce buffer */
host->dram_access_quirk = device_property_read_bool(&pdev->dev,
@@ -1139,7 +1141,7 @@ static int meson_mmc_probe(struct platform_device *pdev)
host->regs + SD_EMMC_IRQ_EN);
ret = request_threaded_irq(host->irq, meson_mmc_irq,
- meson_mmc_irq_thread, IRQF_ONESHOT,
+ meson_mmc_irq_thread, 0,
dev_name(&pdev->dev), host);
if (ret)
goto err_init_clk;
--
2.20.1
_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
next prev parent reply other threads:[~2020-09-27 2:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-27 2:54 [PATCH v2 0/1] mmc: host: meson-gx-mmc: fix possible deadlock condition for preempt_rt Brad Harper
2020-09-27 2:54 ` Brad Harper [this message]
2020-09-28 16:41 ` [PATCH v2 1/1] " Sebastian Andrzej Siewior
2020-09-29 0:35 ` Kevin Hilman
2020-09-29 8:32 ` Brad Harper
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=20200927025418.12382-2-bjharper@gmail.com \
--to=bjharper@gmail.com \
--cc=linux-amlogic@lists.infradead.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=linux-rt-users@vger.kernel.org \
/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;
as well as URLs for NNTP newsgroup(s).