diff options
| author | Stefan Agner <stefan.agner@toradex.com> | 2017-09-26 16:04:08 +0200 |
|---|---|---|
| committer | Stefan Agner <stefan.agner@toradex.com> | 2017-09-26 18:11:18 +0200 |
| commit | 1f4d46cea2bc1886a13ae9adfcd9e4243eed6a4c (patch) | |
| tree | 2001999c70f8e46b192fc552590810aab35710e3 /drivers/base/platform.c | |
| parent | d152ae9d4704d8c7b3775e3b1a20e62aa3b1eed8 (diff) | |
| parent | b52c9082f2eb3a6f7fbbc86fad3eaa2a1725da66 (diff) | |
Merge tag 'v4.4.88' into toradex_vf_4.4-next
This is the 4.4.88 stable release
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index ba66330cea67..cb4ad6e98b28 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -807,7 +807,7 @@ static ssize_t driver_override_store(struct device *dev, const char *buf, size_t count) { struct platform_device *pdev = to_platform_device(dev); - char *driver_override, *old = pdev->driver_override, *cp; + char *driver_override, *old, *cp; if (count > PATH_MAX) return -EINVAL; @@ -820,12 +820,15 @@ static ssize_t driver_override_store(struct device *dev, if (cp) *cp = '\0'; + device_lock(dev); + old = pdev->driver_override; if (strlen(driver_override)) { pdev->driver_override = driver_override; } else { kfree(driver_override); pdev->driver_override = NULL; } + device_unlock(dev); kfree(old); @@ -836,8 +839,12 @@ static ssize_t driver_override_show(struct device *dev, struct device_attribute *attr, char *buf) { struct platform_device *pdev = to_platform_device(dev); + ssize_t len; - return sprintf(buf, "%s\n", pdev->driver_override); + device_lock(dev); + len = sprintf(buf, "%s\n", pdev->driver_override); + device_unlock(dev); + return len; } static DEVICE_ATTR_RW(driver_override); |