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-rw-r--r--drivers/target/target_core_file.c21
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 3dcfc73528ec..1284fec63db8 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -264,11 +264,10 @@ static int fd_do_prot_rw(struct se_cmd *cmd, struct fd_prot *fd_prot,
struct se_device *se_dev = cmd->se_dev;
struct fd_dev *dev = FD_DEV(se_dev);
struct file *prot_fd = dev->fd_prot_file;
- struct scatterlist *sg;
loff_t pos = (cmd->t_task_lba * se_dev->prot_length);
unsigned char *buf;
- u32 prot_size, len, size;
- int rc, ret = 1, i;
+ u32 prot_size;
+ int rc, ret = 1;
prot_size = (cmd->data_length / se_dev->dev_attrib.block_size) *
se_dev->prot_length;
@@ -281,24 +280,16 @@ static int fd_do_prot_rw(struct se_cmd *cmd, struct fd_prot *fd_prot,
}
buf = fd_prot->prot_buf;
- fd_prot->prot_sg_nents = cmd->t_prot_nents;
- fd_prot->prot_sg = kzalloc(sizeof(struct scatterlist) *
- fd_prot->prot_sg_nents, GFP_KERNEL);
+ fd_prot->prot_sg_nents = 1;
+ fd_prot->prot_sg = kzalloc(sizeof(struct scatterlist),
+ GFP_KERNEL);
if (!fd_prot->prot_sg) {
pr_err("Unable to allocate fd_prot->prot_sg\n");
kfree(fd_prot->prot_buf);
return -ENOMEM;
}
sg_init_table(fd_prot->prot_sg, fd_prot->prot_sg_nents);
- size = prot_size;
-
- for_each_sg(fd_prot->prot_sg, sg, fd_prot->prot_sg_nents, i) {
-
- len = min_t(u32, PAGE_SIZE, size);
- sg_set_buf(sg, buf, len);
- size -= len;
- buf += len;
- }
+ sg_set_buf(fd_prot->prot_sg, buf, prot_size);
}
if (is_write) {