diff options
Diffstat (limited to 'drivers/char/hw_random/st-rng.c')
| -rw-r--r-- | drivers/char/hw_random/st-rng.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/char/hw_random/st-rng.c b/drivers/char/hw_random/st-rng.c index 1d35363d23c5..938ec10e733d 100644 --- a/drivers/char/hw_random/st-rng.c +++ b/drivers/char/hw_random/st-rng.c @@ -54,9 +54,6 @@ static int st_rng_read(struct hwrng *rng, void *data, size_t max, bool wait) u32 status; int i; - if (max < sizeof(u16)) - return -EINVAL; - /* Wait until FIFO is full - max 4uS*/ for (i = 0; i < ST_RNG_FILL_FIFO_TIMEOUT; i++) { status = readl_relaxed(ddata->base + ST_RNG_STATUS_REG); @@ -111,6 +108,7 @@ static int st_rng_probe(struct platform_device *pdev) ret = hwrng_register(&ddata->ops); if (ret) { dev_err(&pdev->dev, "Failed to register HW RNG\n"); + clk_disable_unprepare(clk); return ret; } |