From 2d0bcfa3318c276dba5100510e59c5c2fa62957f Mon Sep 17 00:00:00 2001 From: Konsta Holtta Date: Fri, 26 Sep 2014 16:05:41 +0300 Subject: gpu: nvgpu: add __must_check to gk20a_busy 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 Reviewed-on: http://git-master/r/542552 Reviewed-by: Terje Bergstrom Tested-by: Terje Bergstrom --- drivers/gpu/nvgpu/gk20a/as_gk20a.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/nvgpu/gk20a/as_gk20a.c') diff --git a/drivers/gpu/nvgpu/gk20a/as_gk20a.c b/drivers/gpu/nvgpu/gk20a/as_gk20a.c index ed7602f0..5ca7c806 100644 --- a/drivers/gpu/nvgpu/gk20a/as_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/as_gk20a.c @@ -82,8 +82,12 @@ int gk20a_as_release_share(struct gk20a_as_share *as_share) if (atomic_dec_return(&as_share->ref_cnt) > 0) return 0; - gk20a_busy(g->dev); + err = gk20a_busy(g->dev); + if (err) + return err; + err = gk20a_vm_release_share(as_share); + gk20a_idle(g->dev); release_as_share_id(as_share->as, as_share->id); -- cgit v1.2.2