[Intel-gfx] [PATCH] drm/i915: Avoid leaking lpe audio platdev.data

[Chris Wilson]

Quoting Jani Nikula (2018-01-19 14:11:29)
> On Sat, 09 Dec 2017, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> > 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 at chris-wilson.co.uk>
> > Cc: Takashi Iwai <tiwai at suse.de>
> > Cc: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
> > Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> I queued this for re-testing.
> 
> Reviewed-by: Jani Nikula <jani.nikula at intel.com>

And finally pushed, thanks.
-Chris