5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Minjie Du <duminjie@xxxxxxxx>
[ 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>
---
drivers/ata/pata_arasan_cf.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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;
}
--
2.40.1
