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authorCorentin LABBE <clabbe.montjoie@gmail.com>2017-09-20 20:31:40 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2017-10-07 12:10:34 +0800
commitde915688385ca9df749a3d46e824a8200f05d65e (patch)
treeea94301995e0265671a77621fe0ce8cf77a9c527 /drivers
parente781c17c22fdd390e54b972c010acdc862ac66df (diff)
downloadlinux-de915688385ca9df749a3d46e824a8200f05d65e.tar.gz
crypto: stm32 - use of_device_get_match_data
The usage of of_device_get_match_data reduce the code size a bit. Furthermore, it prevents an improbable dereference when of_match_device() return NULL. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/crypto/stm32/stm32-hash.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c
index b34ee85509c2..fd13838fcff2 100644
--- a/drivers/crypto/stm32/stm32-hash.c
+++ b/drivers/crypto/stm32/stm32-hash.c
@@ -1407,11 +1407,10 @@ MODULE_DEVICE_TABLE(of, stm32_hash_of_match);
static int stm32_hash_get_of_match(struct stm32_hash_dev *hdev,
struct device *dev)
{
- const struct of_device_id *match;
int err;
- match = of_match_device(stm32_hash_of_match, dev);
- if (!match) {
+ hdev->pdata = of_device_get_match_data(dev);
+ if (!hdev->pdata) {
dev_err(dev, "no compatible OF match\n");
return -EINVAL;
}
@@ -1419,8 +1418,6 @@ static int stm32_hash_get_of_match(struct stm32_hash_dev *hdev,
err = of_property_read_u32(dev->of_node, "dma-maxburst",
&hdev->dma_maxburst);
- hdev->pdata = match->data;
-
return err;
}