This is a note to let you know that I've just added the patch titled
ata: pata_arasan_cf: Use dev_err_probe() instead dev_err() in data_xfer()
to the 5.15-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:
ata-pata_arasan_cf-use-dev_err_probe-instead-dev_err.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3f4b1fabda6e9eeda6877e35b62ca37568402ce2
Author: Minjie Du <duminjie@xxxxxxxx>
Date: Tue Jul 25 11:06:25 2023 +0800
ata: pata_arasan_cf: Use dev_err_probe() instead dev_err() in data_xfer()
[ Upstream commit 4139f992c49356391fb086c0c8ce51f66c26d623 ]
It is possible for dma_request_chan() to return EPROBE_DEFER, which
means acdev->host->dev is not ready yet. At this point dev_err() will
have no output. Use dev_err_probe() instead.
Signed-off-by: Minjie Du <duminjie@xxxxxxxx>
Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
Signed-off-by: Damien Le Moal <dlemoal@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 63f39440a9b42..4ba02f082f962 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -528,7 +528,8 @@ static void data_xfer(struct work_struct *work)
/* dma_request_channel may sleep, so calling from process context */
acdev->dma_chan = dma_request_chan(acdev->host->dev, "data");
if (IS_ERR(acdev->dma_chan)) {
- dev_err(acdev->host->dev, "Unable to get dma_chan\n");
+ dev_err_probe(acdev->host->dev, PTR_ERR(acdev->dma_chan),
+ "Unable to get dma_chan\n");
acdev->dma_chan = NULL;
goto chan_request_fail;
}
