[PATCH v2] io_uring/memmap: return -EINVAL from get_unmapped_area() on bad mmap

[Yi Xie]

get_unmapped_area() returns -ENOMEM when io_uring_validate_mmap_request()
fails, but validation errors are -EINVAL. Propagate that errno to
userspace, like io_uring_mmap() already does.

Signed-off-by: Yi Xie <xieyi@xxxxxxxxxx>
---
 io_uring/memmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/io_uring/memmap.c b/io_uring/memmap.c
index da1f6c5d07f8..23e8a85111bc 100644
--- a/io_uring/memmap.c
+++ b/io_uring/memmap.c
@@ -337,7 +337,7 @@ unsigned long io_uring_get_unmapped_area(struct file *filp, unsigned long addr,
 
 	ptr = io_uring_validate_mmap_request(filp, pgoff);
 	if (IS_ERR(ptr))
-		return -ENOMEM;
+		return PTR_ERR(ptr);
 
 	/*
 	 * Some architectures have strong cache aliasing requirements.
-- 
2.25.1