From: Greg Kroah-Hartman gregkh@linuxfoundation.org
mainline inclusion from mainline-v5.11-rc1 commit 0d2bf11a6b3e275a526b8d42d8d4a3a6067cf953 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4O662 CVE: NA
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For some reason, the original aux bus patch had some really long lines in a few places, probably due to it being a very long-lived patch in development by many different people. Fix that up so that the two files all have the same length lines and function formatting styles.
Cc: Dan Williams dan.j.williams@intel.com Cc: Dave Ertman david.m.ertman@intel.com Cc: Fred Oh fred.oh@linux.intel.com Cc: Kiran Patil kiran.patil@intel.com Cc: Leon Romanovsky leonro@nvidia.com Cc: Martin Habets mhabets@solarflare.com Cc: Parav Pandit parav@mellanox.com Cc: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Cc: Ranjani Sridharan ranjani.sridharan@linux.intel.com Cc: Shiraz Saleem shiraz.saleem@intel.com Link: https://lore.kernel.org/r/X8oiSFTpYHw1xE/o@kroah.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yuanzheng Song songyuanzheng@huawei.com Reviewed-by: Kefeng Wangwangkefeng.wang@huawei.com Reviewed-by: Hanjun Guo guohanjun@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/base/auxiliary.c | 58 +++++++++++++++++++---------------- include/linux/auxiliary_bus.h | 6 ++-- 2 files changed, 35 insertions(+), 29 deletions(-)
diff --git a/drivers/base/auxiliary.c b/drivers/base/auxiliary.c index c44e85802b43..f303daadf843 100644 --- a/drivers/base/auxiliary.c +++ b/drivers/base/auxiliary.c @@ -50,8 +50,8 @@ static int auxiliary_uevent(struct device *dev, struct kobj_uevent_env *env) name = dev_name(dev); p = strrchr(name, '.');
- return add_uevent_var(env, "MODALIAS=%s%.*s", AUXILIARY_MODULE_PREFIX, (int)(p - name), - name); + return add_uevent_var(env, "MODALIAS=%s%.*s", AUXILIARY_MODULE_PREFIX, + (int)(p - name), name); }
static const struct dev_pm_ops auxiliary_dev_pm_ops = { @@ -113,16 +113,18 @@ static struct bus_type auxiliary_bus_type = { * auxiliary_device_init - check auxiliary_device and initialize * @auxdev: auxiliary device struct * - * This is the first step in the two-step process to register an auxiliary_device. + * This is the first step in the two-step process to register an + * auxiliary_device. * - * When this function returns an error code, then the device_initialize will *not* have - * been performed, and the caller will be responsible to free any memory allocated for the - * auxiliary_device in the error path directly. + * When this function returns an error code, then the device_initialize will + * *not* have been performed, and the caller will be responsible to free any + * memory allocated for the auxiliary_device in the error path directly. * - * It returns 0 on success. On success, the device_initialize has been performed. After this - * point any error unwinding will need to include a call to auxiliary_device_uninit(). - * In this post-initialize error scenario, a call to the device's .release callback will be - * triggered, and all memory clean-up is expected to be handled there. + * It returns 0 on success. On success, the device_initialize has been + * performed. After this point any error unwinding will need to include a call + * to auxiliary_device_uninit(). In this post-initialize error scenario, a call + * to the device's .release callback will be triggered, and all memory clean-up + * is expected to be handled there. */ int auxiliary_device_init(struct auxiliary_device *auxdev) { @@ -149,16 +151,19 @@ EXPORT_SYMBOL_GPL(auxiliary_device_init); * @auxdev: auxiliary bus device to add to the bus * @modname: name of the parent device's driver module * - * This is the second step in the two-step process to register an auxiliary_device. + * This is the second step in the two-step process to register an + * auxiliary_device. * - * This function must be called after a successful call to auxiliary_device_init(), which - * will perform the device_initialize. This means that if this returns an error code, then a - * call to auxiliary_device_uninit() must be performed so that the .release callback will - * be triggered to free the memory associated with the auxiliary_device. + * This function must be called after a successful call to + * auxiliary_device_init(), which will perform the device_initialize. This + * means that if this returns an error code, then a call to + * auxiliary_device_uninit() must be performed so that the .release callback + * will be triggered to free the memory associated with the auxiliary_device. * - * The expectation is that users will call the "auxiliary_device_add" macro so that the caller's - * KBUILD_MODNAME is automatically inserted for the modname parameter. Only if a user requires - * a custom name would this version be called directly. + * The expectation is that users will call the "auxiliary_device_add" macro so + * that the caller's KBUILD_MODNAME is automatically inserted for the modname + * parameter. Only if a user requires a custom name would this version be + * called directly. */ int __auxiliary_device_add(struct auxiliary_device *auxdev, const char *modname) { @@ -166,13 +171,13 @@ int __auxiliary_device_add(struct auxiliary_device *auxdev, const char *modname) int ret;
if (!modname) { - pr_err("auxiliary device modname is NULL\n"); + dev_err(dev, "auxiliary device modname is NULL\n"); return -EINVAL; }
ret = dev_set_name(dev, "%s.%s.%d", modname, auxdev->name, auxdev->id); if (ret) { - pr_err("auxiliary device dev_set_name failed: %d\n", ret); + dev_err(dev, "auxiliary device dev_set_name failed: %d\n", ret); return ret; }
@@ -197,9 +202,9 @@ EXPORT_SYMBOL_GPL(__auxiliary_device_add); * if it does. If the callback returns non-zero, this function will * return to the caller and not iterate over any more devices. */ -struct auxiliary_device * -auxiliary_find_device(struct device *start, const void *data, - int (*match)(struct device *dev, const void *data)) +struct auxiliary_device *auxiliary_find_device(struct device *start, + const void *data, + int (*match)(struct device *dev, const void *data)) { struct device *dev;
@@ -217,14 +222,15 @@ EXPORT_SYMBOL_GPL(auxiliary_find_device); * @owner: owning module/driver * @modname: KBUILD_MODNAME for parent driver */ -int __auxiliary_driver_register(struct auxiliary_driver *auxdrv, struct module *owner, - const char *modname) +int __auxiliary_driver_register(struct auxiliary_driver *auxdrv, + struct module *owner, const char *modname) { if (WARN_ON(!auxdrv->probe) || WARN_ON(!auxdrv->id_table)) return -EINVAL;
if (auxdrv->name) - auxdrv->driver.name = kasprintf(GFP_KERNEL, "%s.%s", modname, auxdrv->name); + auxdrv->driver.name = kasprintf(GFP_KERNEL, "%s.%s", modname, + auxdrv->name); else auxdrv->driver.name = kasprintf(GFP_KERNEL, "%s", modname); if (!auxdrv->driver.name) diff --git a/include/linux/auxiliary_bus.h b/include/linux/auxiliary_bus.h index d67b17606210..fc51d45f106b 100644 --- a/include/linux/auxiliary_bus.h +++ b/include/linux/auxiliary_bus.h @@ -70,8 +70,8 @@ void auxiliary_driver_unregister(struct auxiliary_driver *auxdrv); #define module_auxiliary_driver(__auxiliary_driver) \ module_driver(__auxiliary_driver, auxiliary_driver_register, auxiliary_driver_unregister)
-struct auxiliary_device * -auxiliary_find_device(struct device *start, const void *data, - int (*match)(struct device *dev, const void *data)); +struct auxiliary_device *auxiliary_find_device(struct device *start, + const void *data, + int (*match)(struct device *dev, const void *data));
#endif /* _AUXILIARY_BUS_H_ */