From: Hugo Villeneuve hvilleneuve@dimonoff.com

If regmap_read() returns a non-zero value, the 'val' variable can be left uninitialized.

Clear it before calling regmap_read() to make sure we properly detect the clock ready bit.

Fixes: 4cf9a888fd3c ("serial: max310x: Check the clock readiness") Cc: stable@vger.kernel.org Signed-off-by: Hugo Villeneuve hvilleneuve@dimonoff.com --- drivers/tty/serial/max310x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index f3a99daebdaa..b2c753ba9cbf 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -641,7 +641,7 @@ static u32 max310x_set_ref_clk(struct device *dev, struct max310x_port *s,

/* Wait for crystal */ if (xtal) { - unsigned int val; + unsigned int val = 0; msleep(10); regmap_read(s->regmap, MAX310X_STS_IRQSTS_REG, &val); if (!(val & MAX310X_STS_CLKREADY_BIT)) {