Ninad Malwade 69ffeeaa26 gpu: nvgpu: fix the tpc_pg_mask read and store return values ...

tpc_pg_mask_read: function returns the value stored in the
tpc_pg_mask node. Since, it does not have the terminator it
returns garbage value after the mask value and gets troublesome
to parse in the userspace. Fix is to add '\n' at the end of the
mask value to be consistent with the earlier releases.

tpc_pg_mask_store: In this function there is a call to check if
gpu is powered on or not. In case when gpu is powered on, the return
value is just assigned to the 'err' variable which is never
returned to notify the application to follow the next steps. Thus,
need to return this value and inform the same to the userspace.

Bug 3445617

Change-Id: Ibb6fed88c83c751a5fb73181089274aa27c3f18b
Signed-off-by: Ninad Malwade <nmalwade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2630925
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2021-11-30 11:30:16 -08:00

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