diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-11-24 05:09:08 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-11-24 05:09:08 +0100 |
| commit | 69e6cdd0cf16f645be39038e5ccc9379e3923d00 (patch) | |
| tree | 3edb32b07ef37be1536f6510ec8e7caaf5acbbb8 /drivers/misc/cxl/api.c | |
| parent | 6a6b12e2125591e24891e6860410795ea53aed11 (diff) | |
| parent | 10b9dd56860e93f11cd352e8c75a33357b80b70b (diff) | |
Merge branch 'linus' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/misc/cxl/api.c')
| -rw-r--r-- | drivers/misc/cxl/api.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index f3d34b941f85..2e5233b60971 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -229,6 +229,14 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed, if (ctx->status == STARTED) goto out; /* already started */ + /* + * Increment the mapped context count for adapter. This also checks + * if adapter_context_lock is taken. + */ + rc = cxl_adapter_context_get(ctx->afu->adapter); + if (rc) + goto out; + if (task) { ctx->pid = get_task_pid(task, PIDTYPE_PID); ctx->glpid = get_task_pid(task->group_leader, PIDTYPE_PID); @@ -239,7 +247,10 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed, cxl_ctx_get(); if ((rc = cxl_ops->attach_process(ctx, kernel, wed, 0))) { + put_pid(ctx->glpid); put_pid(ctx->pid); + ctx->glpid = ctx->pid = NULL; + cxl_adapter_context_put(ctx->afu->adapter); cxl_ctx_put(); goto out; } |