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drivers: base: omit redundant interations 

When error happens, these interators return the error, no interation should
be continued, so make the change for getting out of while immediately.

Signed-off-by: Gimcuan Hui <gimcuan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gimcuan Hui 2017-11-11 05:52:54 +00:00 committed by Greg Kroah-Hartman
parent 73cf7e111e
commit 93ead7c948
3 changed files with 3 additions and 3 deletions
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2
drivers/base/bus.c
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@ -307,7 +307,7 @@ int bus_for_each_dev(struct bus_type *bus, struct device *start,
klist_iter_init_node(&bus->p->klist_devices, &i, klist_iter_init_node(&bus->p->klist_devices, &i,
(start ? &start->p->knode_bus : NULL)); (start ? &start->p->knode_bus : NULL));
while ((dev = next_device(&i)) && !error) while (!error && (dev = next_device(&i)))
error = fn(dev, data); error = fn(dev, data);
klist_iter_exit(&i); klist_iter_exit(&i);
return error; return error;

2
drivers/base/core.c
View File

@ -2114,7 +2114,7 @@ int device_for_each_child(struct device *parent, void *data,
return 0; return 0;
klist_iter_init(&parent->p->klist_children, &i); klist_iter_init(&parent->p->klist_children, &i);
while ((child = next_device(&i)) && !error) while (!error && (child = next_device(&i)))
error = fn(child, data); error = fn(child, data);
klist_iter_exit(&i); klist_iter_exit(&i);
return error; return error;

2
drivers/base/driver.c
View File

@ -50,7 +50,7 @@ int driver_for_each_device(struct device_driver *drv, struct device *start,
klist_iter_init_node(&drv->p->klist_devices, &i, klist_iter_init_node(&drv->p->klist_devices, &i,
start ? &start->p->knode_driver : NULL); start ? &start->p->knode_driver : NULL);
while ((dev = next_device(&i)) && !error) while (!error && (dev = next_device(&i)))
error = fn(dev, data); error = fn(dev, data);
klist_iter_exit(&i); klist_iter_exit(&i);
return error; return error;