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| author | Haojian Zhuang <haojian.zhuang@gmail.com> | 2012-10-18 17:07:01 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2012-10-18 20:27:31 +0200 |
| commit | 7ae9d71e8df27a3ab60a05ae3add08728debc09c (patch) | |
| tree | 79afd74f0c1b57146cf69506b9ff6b6c56abc3f2 /drivers/pinctrl/pinconf.c | |
| parent | a03690e44468dcd3088f6600ab036d17bd2130ff (diff) | |
| download | linux-7ae9d71e8df27a3ab60a05ae3add08728debc09c.tar.gz linux-7ae9d71e8df27a3ab60a05ae3add08728debc09c.tar.bz2 linux-7ae9d71e8df27a3ab60a05ae3add08728debc09c.zip | |
pinctrl: remove mutex lock in groups show
Mutex is locked duplicatly by pinconf_groups_show() and
pin_config_group_get(). It results dead lock. So avoid to lock mutex
in pinconf_groups_show().
Cc: stable@kernel.org
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinconf.c')
| -rw-r--r-- | drivers/pinctrl/pinconf.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c index 43f474cdc110..baee2cc46a17 100644 --- a/drivers/pinctrl/pinconf.c +++ b/drivers/pinctrl/pinconf.c @@ -537,8 +537,6 @@ static int pinconf_groups_show(struct seq_file *s, void *what) seq_puts(s, "Pin config settings per pin group\n"); seq_puts(s, "Format: group (name): configs\n"); - mutex_lock(&pinctrl_mutex); - while (selector < ngroups) { const char *gname = pctlops->get_group_name(pctldev, selector); @@ -549,8 +547,6 @@ static int pinconf_groups_show(struct seq_file *s, void *what) selector++; } - mutex_unlock(&pinctrl_mutex); - return 0; } |