Commit 4e3edd00 authored by Hyunchul Lee's avatar Hyunchul Lee Committed by Steve French
Browse files

ksmbd: smbd: change the return value of get_sg_list 



Make get_sg_list return EINVAL if there aren't
mapped scatterlists.

Signed-off-by: default avatarHyunchul Lee <hyc.lee@gmail.com>
Acked-by: default avatarNamjae Jeon <linkinjeon@kernel.org>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 11659a8d

fs/ksmbd/transport_rdma.c

+2 −2
Original line number Diff line number Diff line
@@ -1079,7 +1079,7 @@ static int get_sg_list(void *buf, int size, struct scatterlist *sg_list, int nen 
	int offset, len;

	int i = 0;



	if (nentries < get_buf_page_count(buf, size))

	if (size <= 0 || nentries < get_buf_page_count(buf, size))

		return -EINVAL;



	offset = offset_in_page(buf);
@@ -1111,7 +1111,7 @@ static int get_mapped_sg_list(struct ib_device *device, void *buf, int size, 
	int npages;



	npages = get_sg_list(buf, size, sg_list, nentries);

	if (npages <= 0)

	if (npages < 0)

		return -EINVAL;

	return ib_dma_map_sg(device, sg_list, npages, dir);

}