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authorLionel Debieve <lionel.debieve@st.com>2019-04-08 09:41:58 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2019-04-18 16:14:57 +0200
commita88be9a7558ae51c3c0782bd5ab4340bb3822105 (patch)
tree3e37031d86dd3cb344f9b94e82860ce4fbfaf40d
parentcrypto: mxc-scc - Remove broken driver (diff)
downloadlinux-a88be9a7558ae51c3c0782bd5ab4340bb3822105.tar.xz
linux-a88be9a7558ae51c3c0782bd5ab4340bb3822105.zip
crypto: stm32/hash - Fix self test issue during export
Change the wait condition to check if the hash is busy. Context can be saved as soon as hash has finishing processing data. Remove unused lock in the device structure. Signed-off-by: Lionel Debieve <lionel.debieve@st.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/crypto/stm32/stm32-hash.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c
index 4a6cc8a3045d..bfc49e67124b 100644
--- a/drivers/crypto/stm32/stm32-hash.c
+++ b/drivers/crypto/stm32/stm32-hash.c
@@ -181,8 +181,6 @@ struct stm32_hash_dev {
u32 dma_mode;
u32 dma_maxburst;
- spinlock_t lock; /* lock to protect queue */
-
struct ahash_request *req;
struct crypto_engine *engine;
@@ -977,7 +975,7 @@ static int stm32_hash_export(struct ahash_request *req, void *out)
pm_runtime_get_sync(hdev->dev);
- while (!(stm32_hash_read(hdev, HASH_SR) & HASH_SR_DATA_INPUT_READY))
+ while ((stm32_hash_read(hdev, HASH_SR) & HASH_SR_BUSY))
cpu_relax();
rctx->hw_context = kmalloc_array(3 + HASH_CSR_REGISTER_NUMBER,