The device name is tightly coupled and created at the same time as the master->unique address, so we need to free it with the master. Currently we overwrite it each time we create a new master:
unreferenced object 0xe32c54b0 (size 32): comm "Xorg", pid 1455, jiffies 4294721798 (age 3196.879s) hex dump (first 32 bytes): 69 39 31 35 40 70 63 69 3a 30 30 30 30 3a 30 30 i915@pci:0000:00 3a 30 32 2e 30 00 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 :02.0.kkkkkkkkk. backtrace: [<c04e5657>] create_object+0x124/0x1f1 [<c07cf0f0>] kmemleak_alloc+0x4c/0x90 [<c04db84c>] __kmalloc+0x155/0x175 [<f8316665>] drm_setversion+0x11d/0x1b1 [drm] [<f83148d4>] drm_ioctl+0x29a/0x356 [drm] [<c04f27c4>] vfs_ioctl+0x33/0x91 [<c04f31cf>] do_vfs_ioctl+0x46b/0x496 [<c04f3240>] sys_ioctl+0x46/0x66 [<c040325f>] sysenter_do_call+0x12/0x38 [<ffffffff>] 0xffffffff
Signed-off-by: Chris Wilson chris@chris-wilson.co.uk Cc: Dave Airlie airlied@redhat.com --- drivers/gpu/drm/drm_stub.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index a0c365f..4aa84f4 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -156,6 +156,9 @@ static void drm_master_destroy(struct kref *kref) master->unique_len = 0; }
+ kfree(dev->devname); + dev->devname = NULL; + list_for_each_entry_safe(pt, next, &master->magicfree, head) { list_del(&pt->head); drm_ht_remove_item(&master->magiclist, &pt->hash_item);