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| author | Dong Aisheng <dong.aisheng@linaro.org> | 2012-04-06 16:18:09 +0400 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2012-04-18 15:53:11 +0400 |
| commit | a1d31f71e6ed2f714830df8885ec07dfe1f6632e (patch) | |
| tree | 023be552c4d60c59414999c8a58c3888c7058824 /drivers/pinctrl/pinmux.c | |
| parent | d1e90e9e7467dbfe521b25ba79f520bf676ebc36 (diff) | |
| download | linux-a1d31f71e6ed2f714830df8885ec07dfe1f6632e.tar.xz | |
pinctrl: fix pinmux_check_ops error checking
Do not use get_functions_count before checking.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinmux.c')
| -rw-r--r-- | drivers/pinctrl/pinmux.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c index 375b214780e9..8849830e5190 100644 --- a/drivers/pinctrl/pinmux.c +++ b/drivers/pinctrl/pinmux.c @@ -33,11 +33,12 @@ int pinmux_check_ops(struct pinctrl_dev *pctldev) { const struct pinmux_ops *ops = pctldev->desc->pmxops; - unsigned nfuncs = ops->get_functions_count(pctldev); + unsigned nfuncs; unsigned selector = 0; /* Check that we implement required operations */ - if (!ops->get_functions_count || + if (!ops || + !ops->get_functions_count || !ops->get_function_name || !ops->get_function_groups || !ops->enable || @@ -45,11 +46,12 @@ int pinmux_check_ops(struct pinctrl_dev *pctldev) return -EINVAL; /* Check that all functions registered have names */ + nfuncs = ops->get_functions_count(pctldev); while (selector < nfuncs) { const char *fname = ops->get_function_name(pctldev, selector); if (!fname) { - pr_err("pinmux ops has no name for function%u\n", + dev_err(pctldev->dev, "pinmux ops has no name for function%u\n", selector); return -EINVAL; } |