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authorDavid Herrmann <dh.herrmann@gmail.com>2013-11-21 19:15:48 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-09 02:25:10 (GMT)
commitbbc780f8bab52fef1784151d3c4982cb1143edd2 (patch)
tree01585734243405412fbfb466e0eb6919437c4746 /drivers/base
parentd0f80f9aadf60adc4caafed0d2b01e79a315ff80 (diff)
downloadlinux-bbc780f8bab52fef1784151d3c4982cb1143edd2.tar.xz
driver core: fix device_create() error path
We call put_device() in the error path, which is fine for dev==NULL. However, in case kobject_set_name_vargs() fails, we have dev!=NULL but device_initialized() wasn't called, yet. Fix this by splitting device_register() into explicit calls to device_add() and an early call to device_initialize(). Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 67b180d..aab43fb 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1603,6 +1603,7 @@ device_create_groups_vargs(struct class *class, struct device *parent,
goto error;
}
+ device_initialize(dev);
dev->devt = devt;
dev->class = class;
dev->parent = parent;
@@ -1614,7 +1615,7 @@ device_create_groups_vargs(struct class *class, struct device *parent,
if (retval)
goto error;
- retval = device_register(dev);
+ retval = device_add(dev);
if (retval)
goto error;