This is a note to let you know that I've just added the patch titled
spi: imx: fix reference leak in two imx operations
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
spi-imx-fix-reference-leak-in-two-imx-operations.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1dcbdd944824369d4569959f8130336fe6fe5f39 Mon Sep 17 00:00:00 2001
From: Zhang Qilong <zhangqilong3@xxxxxxxxxx>
Date: Mon, 2 Nov 2020 22:58:35 +0800
Subject: spi: imx: fix reference leak in two imx operations
From: Zhang Qilong <zhangqilong3@xxxxxxxxxx>
commit 1dcbdd944824369d4569959f8130336fe6fe5f39 upstream.
pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to pm_runtime_put_noidle will result in
reference leak in callers(spi_imx_prepare_message and
spi_imx_remove), so we should fix it.
Fixes: 525c9e5a32bd7 ("spi: imx: enable runtime pm support")
Signed-off-by: Zhang Qilong <zhangqilong3@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20201102145835.4765-1-zhangqilong3@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/spi/spi-imx.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -1538,6 +1538,7 @@ spi_imx_prepare_message(struct spi_maste
ret = pm_runtime_resume_and_get(spi_imx->dev);
if (ret < 0) {
+ pm_runtime_put_noidle(spi_imx->dev);
dev_err(spi_imx->dev, "failed to enable clock\n");
return ret;
}
Patches currently in stable-queue which might be from zhangqilong3@xxxxxxxxxx are
queue-5.4/spi-imx-fix-reference-leak-in-two-imx-operations.patch
