nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-24 10:34:43 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: add __must_check to gk20a_busy

Browse Source 
The return value of gk20a_busy must be checked since it may not succeed
in some cases. Add the __must_check attribute that generates a compiler
warning for code that does not read the return value and fix all uses of
the function to take error cases into account.

Bug 200040921

Change-Id: Ibc2b119985fa230324c88026fe94fc5f1894fe4f
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/542552
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Konsta Holtta
2014-09-26 16:05:41 +03:00
committed by Dan Willemsen
parent 79ab01debd
commit 2d0bcfa331
7 changed files with 58 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c
View File

@@ -571,7 +571,10 @@ static int dbg_set_powergate(struct dbg_session_gk20a *dbg_s,
(g->dbg_powergating_disabled_refcount++ == 0)) {
gk20a_dbg(gpu_dbg_gpu_dbg | gpu_dbg_fn, "module busy");
gk20a_busy(g->dev);
err = gk20a_busy(g->dev);
if (err)
return err;
err = gk20a_busy(dbg_s->pdev);
if (err)
return -EPERM;