2009-07-29 13:28:53

by Xiaotian Feng

[permalink] [raw]
Subject: [PATCH] drm/radeon/kms: fix memory leak in radeon_driver_load_kms

This patch fixes following kmemleak report:
unreferenced object 0xffff88022cb53000 (size 4096):
comm "work_for_cpu", pid 97, jiffies 4294672345
backtrace:
[<ffffffff810eb222>] create_object+0x19f/0x2a0
[<ffffffff810eb422>] kmemleak_alloc+0x26/0x4c
[<ffffffff810e363f>] __kmalloc+0x187/0x1b0
[<ffffffffa005f3db>] kzalloc.clone.0+0x13/0x15 [radeon]
[<ffffffffa005f403>] radeon_driver_load_kms+0x26/0xe1 [radeon]
[<ffffffffa0017432>] drm_get_dev+0x37f/0x480 [drm]
[<ffffffffa007f424>] radeon_pci_probe+0x15/0x269 [radeon]
[<ffffffff811f8779>] local_pci_probe+0x17/0x1b
[<ffffffff8105ffbb>] do_work_for_cpu+0x18/0x2a
[<ffffffff81063c38>] kthread+0x8a/0x92
[<ffffffff81012cba>] child_rip+0xa/0x20
[<ffffffffffffffff>] 0xffffffffffffffff

Signed-off-by: Xiaotian Feng <[email protected]>
---
drivers/gpu/drm/radeon/radeon_kms.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 4612a7c..df3fdbe 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -58,6 +58,8 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
if (r) {
DRM_ERROR("Failed to initialize radeon, disabling IOCTL\n");
radeon_device_fini(rdev);
+ kfree(rdev);
+ dev->dev_private = NULL;
return r;
}
return 0;
--
1.6.2.5