The return value of 'readl_poll_timeout' is '0' or '-ETIMEDOUT'. Therefore, change the local variable 'ret' type from 'u32' to 'int'. Signed-off-by: Weili Qian <qianweili@xxxxxxxxxx> --- drivers/crypto/hisilicon/trng/trng.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/hisilicon/trng/trng.c b/drivers/crypto/hisilicon/trng/trng.c index 829f2caf0f67..97e500db0a82 100644 --- a/drivers/crypto/hisilicon/trng/trng.c +++ b/drivers/crypto/hisilicon/trng/trng.c @@ -185,7 +185,7 @@ static int hisi_trng_read(struct hwrng *rng, void *buf, size_t max, bool wait) struct hisi_trng *trng; int currsize = 0; u32 val = 0; - u32 ret; + int ret; trng = container_of(rng, struct hisi_trng, rng); -- 2.33.0
