[PATCH 2/4] ibmebus: fix further device reference leaks
From: Johan Hovold <johan@kernel.org>
Date: 2016-11-01 15:26:36
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Make sure to drop any reference taken by bus_find_device() when creating
devices during init and driver registration.
Fixes: 55347cc9962f ("[POWERPC] ibmebus: Add device creation...)
Signed-off-by: Johan Hovold <johan@kernel.org>
---
arch/powerpc/kernel/ibmebus.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index c7d3ff7e101c..35f5244782d9 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c@@ -180,6 +180,7 @@ static int ibmebus_create_device(struct device_node *dn) static int ibmebus_create_devices(const struct of_device_id *matches) { struct device_node *root, *child; + struct device *dev; int ret = 0; root = of_find_node_by_path("/");
@@ -188,9 +189,12 @@ static int ibmebus_create_devices(const struct of_device_id *matches) if (!of_match_node(matches, child)) continue; - if (bus_find_device(&ibmebus_bus_type, NULL, child, - ibmebus_match_node)) + dev = bus_find_device(&ibmebus_bus_type, NULL, child, + ibmebus_match_node); + if (dev) { + put_device(dev); continue; + } ret = ibmebus_create_device(child); if (ret) {
--
2.7.3