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| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2018-10-10 17:13:13 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-10-12 11:14:38 +0200 |
| commit | 4fe81669df50889ff1072c030c59df5f1fa6534e (patch) | |
| tree | 63196408e0988bff9187192c68c1dec94338a5ed /drivers/pinctrl/cirrus | |
| parent | a85c928f6a7856a09e47d9b37faa3407c7ac6a8e (diff) | |
| download | linux-4fe81669df50889ff1072c030c59df5f1fa6534e.tar.bz2 | |
pinctrl: madera: Fix uninitialized variable bug in madera_mux_set_mux
There is a potential execution path in which variable *ret* is checked
in an IF statement, and then its value is used to report an error at
line 659 without being properly initialized previously:
659 if (ret)
660 dev_err(priv->dev, "Failed to write to 0x%x (%d)\n", reg, ret);
Fix this by initializing variable *ret* to 0 in order to
avoid unpredictable or unintended results.
Addresses-Coverity-ID: 1471969 ("Uninitialized scalar variable")
Fixes: 218d72a77b0b ("pinctrl: madera: Add driver for Cirrus Logic Madera codecs")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/cirrus')
| -rw-r--r-- | drivers/pinctrl/cirrus/pinctrl-madera-core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pinctrl/cirrus/pinctrl-madera-core.c b/drivers/pinctrl/cirrus/pinctrl-madera-core.c index 0266302ae2cf..a5dda832024a 100644 --- a/drivers/pinctrl/cirrus/pinctrl-madera-core.c +++ b/drivers/pinctrl/cirrus/pinctrl-madera-core.c @@ -608,7 +608,7 @@ static int madera_mux_set_mux(struct pinctrl_dev *pctldev, unsigned int n_chip_groups = priv->chip->n_pin_groups; const char *func_name = madera_mux_funcs[selector].name; unsigned int reg; - int i, ret; + int i, ret = 0; dev_dbg(priv->dev, "%s selecting %u (%s) for group %u (%s)\n", __func__, selector, func_name, group, |