diff options
| author | Hugo Villeneuve <hvilleneuve@dimonoff.com> | 2024-01-16 22:29:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-28 04:09:09 +0100 |
| commit | 0419373333c2f2024966d36261fd82a453281e80 (patch) | |
| tree | 54cfcc40770a560a4146d7fc970873dce087386b /drivers | |
| parent | serial: core: Fix atomicity violation in uart_tiocmget (diff) | |
| download | linux-0419373333c2f2024966d36261fd82a453281e80.tar.xz linux-0419373333c2f2024966d36261fd82a453281e80.zip | |
serial: max310x: set default value when reading clock ready bit
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>
Link: https://lore.kernel.org/r/20240116213001.3691629-2-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/max310x.c | 2 |
1 files changed, 1 insertions, 1 deletions
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)) { |