Clang static analyzer complains that value stored to 'rets' is never
read. Remove some useless code, and let 'buf_len = -EOVERFLOW' to make
sure we can return '-EOVERFLOW'.
mei_msg_hdr_init() return negative error code, rets should be
'PTR_ERR(mei_hdr)' rather than '-PTR_ERR(mei_hdr)'.
Fixes: 0cd7c01a60f8 ("mei: add support for mei extended header.")
Fixes: 8c8d964ce90f ("mei: move hbuf_depth from the mei device to the hw modules")
Signed-off-by: Su Hui <suhui@xxxxxxxxxxxx>
---
drivers/misc/mei/client.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 9c8fc87938a7..00dac0a47da0 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -2011,7 +2011,7 @@ ssize_t mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, unsigned long time
mei_hdr = mei_msg_hdr_init(cb);
if (IS_ERR(mei_hdr)) {
- rets = -PTR_ERR(mei_hdr);
+ rets = PTR_ERR(mei_hdr);
mei_hdr = NULL;
goto err;
}
@@ -2020,19 +2020,17 @@ ssize_t mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, unsigned long time
if (rets == 0) {
cl_dbg(dev, cl, "No flow control credentials: not sending.\n");
- rets = buf_len;
goto out;
}
if (!mei_hbuf_acquire(dev)) {
cl_dbg(dev, cl, "Cannot acquire the host buffer: not sending.\n");
- rets = buf_len;
goto out;
}
hbuf_slots = mei_hbuf_empty_slots(dev);
if (hbuf_slots < 0) {
- rets = -EOVERFLOW;
+ buf_len = -EOVERFLOW;
goto out;
}
--
2.30.2
