[PATCH 07/20] staging: gasket: gasket_mmap return error instead of valid BAR index

[Todd Poynor]

From: Todd Poynor <toddpoy...@google.com>

When offset to be mapped matches both a BAR region and a coherent mapped
region return an error as intended, not the BAR index.

Signed-off-by: Simon Que <s...@chromium.org>
Signed-off-by: Todd Poynor <toddpoy...@google.com>
---
 drivers/staging/gasket/gasket_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/gasket/gasket_core.c 
b/drivers/staging/gasket/gasket_core.c
index eb5ad161ccda2..3cf918f9d2604 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -1627,7 +1627,7 @@ static int gasket_mmap(struct file *filp, struct 
vm_area_struct *vma)
                        "0x%lx",
                        raw_offset);
                trace_gasket_mmap_exit(bar_index);
-               return bar_index;
+               return -EINVAL;
        }
 
        vma->vm_private_data = gasket_dev;
-- 
2.18.0.233.g985f88cf7e-goog