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Subject[PATCH 07/20] staging: gasket: gasket_mmap return error instead of valid BAR index
Date
From: Todd Poynor <toddpoynor@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 <sque@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@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
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