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authorDaniel Vetter <daniel.vetter@ffwll.ch>2016-01-18 08:04:23 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-01-18 08:18:16 +0100
commit2da80b57c69a2a5ae0e16dead8cdbfab46f970bc (patch)
tree402529def53a1b32066493f5581c3e1810d11a1d /drivers/phy/phy-core.c
parent2d7f3bdb2cf6656386cb9ca1b02dd6df66fb05e8 (diff)
parent1df59b8497f47495e873c23abd6d3d290c730505 (diff)
downloadlinux-2da80b57c69a2a5ae0e16dead8cdbfab46f970bc.tar.bz2
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
Pull in Dave's drm-next pull request to have a clean base for 4.6. Also, we need the various atomic state extensions Maarten recently created. Conflicts are just adjacent changes that all resolve to nothing in git diff. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/phy/phy-core.c')
-rw-r--r--drivers/phy/phy-core.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index fc48fac003a6..8c7f27db6ad3 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -636,8 +636,9 @@ EXPORT_SYMBOL_GPL(devm_of_phy_get);
* @np: node containing the phy
* @index: index of the phy
*
- * Gets the phy using _of_phy_get(), and associates a device with it using
- * devres. On driver detach, release function is invoked on the devres data,
+ * Gets the phy using _of_phy_get(), then gets a refcount to it,
+ * and associates a device with it using devres. On driver detach,
+ * release function is invoked on the devres data,
* then, devres data is freed.
*
*/
@@ -651,13 +652,21 @@ struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
return ERR_PTR(-ENOMEM);
phy = _of_phy_get(np, index);
- if (!IS_ERR(phy)) {
- *ptr = phy;
- devres_add(dev, ptr);
- } else {
+ if (IS_ERR(phy)) {
devres_free(ptr);
+ return phy;
}
+ if (!try_module_get(phy->ops->owner)) {
+ devres_free(ptr);
+ return ERR_PTR(-EPROBE_DEFER);
+ }
+
+ get_device(&phy->dev);
+
+ *ptr = phy;
+ devres_add(dev, ptr);
+
return phy;
}
EXPORT_SYMBOL_GPL(devm_of_phy_get_by_index);