[PATCH 5.13 289/800] crypto: sa2ul - Use of_device_get_match_data() helper

From: Greg Kroah-Hartman
Date: Mon Jul 12 2021 - 04:29:01 EST


From: Suman Anna <s-anna@xxxxxx>

[ Upstream commit d699c5d0bd811e48de72aeeb8e3872c63e957745 ]

Simplify the probe function by using the of_device_get_match_data()
helper instead of open coding. The logic is also moved up to fix the
missing pm_runtime cleanup in case of a match failure.

Fixes: 0bc42311cdff ("crypto: sa2ul - Add support for AM64")
Signed-off-by: Suman Anna <s-anna@xxxxxx>
Reviewed-by: Tero Kristo <kristo@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/crypto/sa2ul.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/sa2ul.c b/drivers/crypto/sa2ul.c
index a215daedf78a..9f077ec9dbb7 100644
--- a/drivers/crypto/sa2ul.c
+++ b/drivers/crypto/sa2ul.c
@@ -2388,7 +2388,6 @@ MODULE_DEVICE_TABLE(of, of_match);

static int sa_ul_probe(struct platform_device *pdev)
{
- const struct of_device_id *match;
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node;
struct resource *res;
@@ -2400,6 +2399,10 @@ static int sa_ul_probe(struct platform_device *pdev)
if (!dev_data)
return -ENOMEM;

+ dev_data->match_data = of_device_get_match_data(dev);
+ if (!dev_data->match_data)
+ return -ENODEV;
+
sa_k3_dev = dev;
dev_data->dev = dev;
dev_data->pdev = pdev;
@@ -2420,13 +2423,6 @@ static int sa_ul_probe(struct platform_device *pdev)
if (ret)
goto destroy_dma_pool;

- match = of_match_node(of_match, dev->of_node);
- if (!match) {
- dev_err(dev, "No compatible match found\n");
- return -ENODEV;
- }
- dev_data->match_data = match->data;
-
spin_lock_init(&dev_data->scid_lock);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
saul_base = devm_ioremap_resource(dev, res);
--
2.30.2