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authorTakashi Iwai <tiwai@suse.de>2021-01-26 09:51:48 +0300
committerTakashi Iwai <tiwai@suse.de>2021-01-26 09:51:48 +0300
commit4f2da3324eaff382ab1c6aaef8c10180b2f4d08c (patch)
tree38dab378ba4ad014d83151f020cc1e5979be0d6d /drivers/base/core.c
parent6755568ad111394da224c823e8baf31a05a1469c (diff)
parent30e88d017fcbeb50c4b07577fe059558361067e7 (diff)
downloadlinux-4f2da3324eaff382ab1c6aaef8c10180b2f4d08c.tar.xz
Merge tag 'tags/isa-void-remove-callback' into for-next
isa: Make the remove callback for isa drivers return void Link: https://lore.kernel.org/r/20210122092449.426097-1-uwe@kleine-koenig.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers/base/core.c')
-rw-r--r--drivers/base/core.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 25e08e5f40bd..14f165816742 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -4414,6 +4414,12 @@ static inline bool fwnode_is_primary(struct fwnode_handle *fwnode)
*
* Set the device's firmware node pointer to @fwnode, but if a secondary
* firmware node of the device is present, preserve it.
+ *
+ * Valid fwnode cases are:
+ * - primary --> secondary --> -ENODEV
+ * - primary --> NULL
+ * - secondary --> -ENODEV
+ * - NULL
*/
void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
{
@@ -4432,8 +4438,9 @@ void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
} else {
if (fwnode_is_primary(fn)) {
dev->fwnode = fn->secondary;
+ /* Set fn->secondary = NULL, so fn remains the primary fwnode */
if (!(parent && fn == parent->fwnode))
- fn->secondary = ERR_PTR(-ENODEV);
+ fn->secondary = NULL;
} else {
dev->fwnode = NULL;
}