The "ways" variable comes from the user. The ways_to_cxl() function
has an upper bound but it doesn't check for negatives. Make
the "ways" variable an unsigned int to fix this bug.
Fixes: 80d10a6cee05 ("cxl/region: Add interleave geometry attributes")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/cxl/cxl.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h
index 75674400cc8d..969953ce2609 100644
--- a/drivers/cxl/cxl.h
+++ b/drivers/cxl/cxl.h
@@ -102,7 +102,7 @@ static inline int granularity_to_cxl(int g, u16 *ig)
return 0;
}
-static inline int ways_to_cxl(int ways, u8 *iw)
+static inline int ways_to_cxl(unsigned int ways, u8 *iw)
{
if (ways > 16)
return -EINVAL;
--
2.35.1
