Since ec39f64bba radeon_hwmon_init() is using
hwmon_device_register_with_groups(), which sets `rdev' as a device
private driver_data, while hwmon_attributes_visible() and
radeon_hwmon_show_temp_thresh() are still waiting for `drm_device'.
fix them by using dev_get_drvdata():
BUG: unable to handle kernel paging request at 0000000000001e28
IP: [<ffffffffa02ae8b4>] hwmon_attributes_visible+0x18/0x3d [radeon]
PGD 15057e067 PUD 151a8e067 PMD 0
Oops: 0000 [#1] PREEMPT SMP
Call Trace:
[<ffffffff81163ba7>] internal_create_group+0x114/0x1d9
[<ffffffff81163c7a>] sysfs_create_group+0xe/0x10
[<ffffffff81163ec7>] sysfs_create_groups+0x22/0x5f
[<ffffffff812ceed8>] device_add+0x34f/0x501
[<ffffffff812cf09f>] device_register+0x15/0x18
[<ffffffff81317e5e>] hwmon_device_register_with_groups+0xb5/0xed
[<ffffffffa02aec00>] radeon_hwmon_init+0x56/0x7c [radeon]
[<ffffffffa02b020b>] radeon_pm_init+0x134/0x7e5 [radeon]
[<ffffffff810f5c7c>] ? kmem_cache_alloc+0x63/0xe3
[<ffffffffa0284ed1>] radeon_modeset_init+0x75f/0x8ed [radeon]
[<ffffffffa02671b6>] radeon_driver_load_kms+0xc6/0x187 [radeon]
[<ffffffffa021cb33>] drm_dev_register+0xf9/0x1b4 [drm]
[<ffffffffa021ddf2>] drm_get_pci_dev+0x98/0x129 [drm]
[<ffffffff810f602e>] ? kfree+0x10a/0x166
[<ffffffffa0264345>] ? radeon_pci_probe+0x91/0xac [radeon]
[<ffffffffa0264357>] radeon_pci_probe+0xa3/0xac [radeon]
[<ffffffff8125b90c>] pci_device_probe+0x6e/0xcf
[<ffffffff812d13e4>] driver_probe_device+0x98/0x1c4
[<ffffffff812d15a4>] __driver_attach+0x5c/0x7e
[<ffffffff812d1548>] ? __device_attach+0x38/0x38
[<ffffffff812cfac9>] bus_for_each_dev+0x7b/0x85
[<ffffffff812d0f69>] driver_attach+0x19/0x1b
[<ffffffff812d0c27>] bus_add_driver+0x104/0x1ce
[<ffffffff812d1b23>] driver_register+0x89/0xc5
[<ffffffff8125b033>] __pci_register_driver+0x58/0x5b
[<ffffffffa037f000>] ? 0xffffffffa037efff
[<ffffffffa021df09>] drm_pci_init+0x86/0xea [drm]
[<ffffffffa037f000>] ? 0xffffffffa037efff
[<ffffffffa037f097>] radeon_init+0x97/0x1000 [radeon]
[<ffffffff81000290>] do_one_initcall+0x7f/0x117
[<ffffffff810323bc>] ? set_memory_nx+0x3b/0x3d
[<ffffffff810a002a>] load_module+0x1583/0x1bb4
[<ffffffff8109d602>] ? store_uevent+0x35/0x35
[<ffffffff8106121a>] ? finish_task_switch+0x3b/0x10c
[<ffffffff813e818b>] ? preempt_schedule_irq+0x5d/0x99
[<ffffffff813ecdf7>] ? retint_restore_args+0x13/0x13
[<ffffffff810a06fb>] SyS_init_module+0xa0/0xaf
[<ffffffff813ed7e6>] tracesys+0xd4/0xd9
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_pm.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index dc75bb6..984097b 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -552,8 +552,7 @@ static ssize_t radeon_hwmon_show_temp_thresh(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- struct drm_device *ddev = dev_get_drvdata(dev);
- struct radeon_device *rdev = ddev->dev_private;
+ struct radeon_device *rdev = dev_get_drvdata(dev);
int hyst = to_sensor_dev_attr(attr)->index;
int temp;
@@ -580,8 +579,7 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = container_of(kobj, struct device, kobj);
- struct drm_device *ddev = dev_get_drvdata(dev);
- struct radeon_device *rdev = ddev->dev_private;
+ struct radeon_device *rdev = dev_get_drvdata(dev);
/* Skip limit attributes if DPM is not enabled */
if (rdev->pm.pm_method != PM_METHOD_DPM &&
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