The struct platform_device memdups the provided data pointer requiring
us to free the template we construct during lpe_audio_platdev_create():
unreferenced object 0xffff88026eafe400 (size 512):
comm "insmod", pid 6850, jiffies 4295060179 (age 22.300s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000008e4a834c>] intel_audio_init+0x9/0x30 [i915]
[<000000001360e195>] i915_driver_load+0x802/0x14e0 [i915]
[<00000000ab3f0e99>] i915_pci_probe+0x29/0x70 [i915]
[<0000000016330ee5>] pci_device_probe+0x9c/0x120
[<000000000257d054>] driver_probe_device+0x307/0x470
[<000000009f0a6cb6>] __driver_attach+0x98/0xe0
[<0000000031b46e58>] bus_for_each_dev+0x57/0x80
[<000000000e28239d>] bus_add_driver+0x1bd/0x260
[<00000000abbe5161>] driver_register+0x52/0xc0
[<000000005c6e23d4>] do_one_initcall+0x36/0x150
[<00000000a55002f4>] do_init_module+0x56/0x1d7
[<00000000e48f2217>] load_module+0x23c8/0x2910
[<000000002b60bf61>] SyS_finit_module+0xb8/0xd0
[<0000000041cbad96>] entry_SYSCALL_64_fastpath+0x17/0x70
[<000000009f1d37ab>] 0xffffffffffffffff
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxx>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_lpe_audio.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_lpe_audio.c b/drivers/gpu/drm/i915/intel_lpe_audio.c
index 3bf65288ffff..0a2e1fea43fa 100644
--- a/drivers/gpu/drm/i915/intel_lpe_audio.c
+++ b/drivers/gpu/drm/i915/intel_lpe_audio.c
@@ -74,7 +74,6 @@
static struct platform_device *
lpe_audio_platdev_create(struct drm_i915_private *dev_priv)
{
- int ret;
struct drm_device *dev = &dev_priv->drm;
struct platform_device_info pinfo = {};
struct resource *rsc;
@@ -119,24 +118,19 @@ lpe_audio_platdev_create(struct drm_i915_private *dev_priv)
spin_lock_init(&pdata->lpe_audio_slock);
platdev = platform_device_register_full(&pinfo);
+ kfree(rsc);
+ kfree(pdata);
+
if (IS_ERR(platdev)) {
- ret = PTR_ERR(platdev);
DRM_ERROR("Failed to allocate LPE audio platform device\n");
- goto err;
+ return platdev;
}
- kfree(rsc);
-
pm_runtime_forbid(&platdev->dev);
pm_runtime_set_active(&platdev->dev);
pm_runtime_enable(&platdev->dev);
return platdev;
-
-err:
- kfree(rsc);
- kfree(pdata);
- return ERR_PTR(ret);
}
static void lpe_audio_platdev_destroy(struct drm_i915_private *dev_priv)
--
2.15.1
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