6.9-stable review patch. If anyone has any objections, please let me know.
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From: Marek Vasut marex@denx.de
[ Upstream commit 31b57788a5024d3a114b28dad224a93831b90b5f ]
The conditional is used to check whether err is non-zero OR whether reg variable is non-zero after clearing bits from it. This should be done using logical OR, not bitwise OR, fix it.
Fixes: 6b85a7e141cb ("hwrng: stm32 - implement STM32MP13x support") Signed-off-by: Marek Vasut marex@denx.de Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/char/hw_random/stm32-rng.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/hw_random/stm32-rng.c b/drivers/char/hw_random/stm32-rng.c index 379bc245c5202..1cc61ef8ee54c 100644 --- a/drivers/char/hw_random/stm32-rng.c +++ b/drivers/char/hw_random/stm32-rng.c @@ -353,7 +353,7 @@ static int stm32_rng_init(struct hwrng *rng) err = readl_relaxed_poll_timeout_atomic(priv->base + RNG_SR, reg, reg & RNG_SR_DRDY, 10, 100000); - if (err | (reg & ~RNG_SR_DRDY)) { + if (err || (reg & ~RNG_SR_DRDY)) { clk_disable_unprepare(priv->clk); dev_err((struct device *)priv->rng.priv, "%s: timeout:%x SR: %x!\n", __func__, err, reg);