The variable hdev->err is never read so it can be removed. Also remove a spurious inclusion of linux/crypto.h. Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Tested-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> --- drivers/crypto/stm32/stm32-hash.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index e16f9aaec6bf..e35fee945371 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -7,7 +7,6 @@ */ #include <linux/clk.h> -#include <linux/crypto.h> #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/dmaengine.h> @@ -183,7 +182,6 @@ struct stm32_hash_dev { struct ahash_request *req; struct crypto_engine *engine; - int err; unsigned long flags; struct dma_chan *dma_lch; @@ -894,7 +892,6 @@ static int stm32_hash_hw_init(struct stm32_hash_dev *hdev, stm32_hash_write(hdev, HASH_STR, 0); stm32_hash_write(hdev, HASH_DIN, 0); stm32_hash_write(hdev, HASH_IMR, 0); - hdev->err = 0; } return 0;