media: replace strncpy() by strscpy()

The strncpy() function is being deprecated upstream. Replace
it by the safer strscpy().

While here, replace a few occurences of strlcpy() that were
recently added to also use strscpy().

Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

3 files changed, 4 insertions, 3 deletions

diff --git a/drivers/media/pci/bt8xx/dst.c b/drivers/media/pci/bt8xx/dst.c
index c94318c71a0c..3315a6d67edf 100644
--- a/drivers/media/pci/bt8xx/dst.c
+++ b/drivers/media/pci/bt8xx/dst.c
@@ -1100,7 +1100,8 @@ static int dst_get_device_id(struct dst_state *state)
                         /*      Card capabilities       */
                         state->dst_hw_cap = p_dst_type->dst_feature;
                         pr_err("Recognise [%s]\n", p_dst_type->device_id);
-                        strncpy(&state->fw_name[0], p_dst_type->device_id, 6);
+                        strscpy((char *)state->fw_name, p_dst_type->device_id,
+                                sizeof(state->fw_name));
                         /*      Multiple tuners         */
                         if (p_dst_type->tuner_type & TUNER_TYPE_MULTI) {
                                 switch (use_dst_type) {
diff --git a/drivers/media/pci/mantis/mantis_i2c.c b/drivers/media/pci/mantis/mantis_i2c.c
index 6528a2180119..f8b503ef42bc 100644
--- a/drivers/media/pci/mantis/mantis_i2c.c
+++ b/drivers/media/pci/mantis/mantis_i2c.c
@@ -225,7 +225,7 @@ int mantis_i2c_init(struct mantis_pci *mantis)
 
         init_waitqueue_head(&mantis->i2c_wq);
         mutex_init(&mantis->i2c_lock);
-        strncpy(i2c_adapter->name, "Mantis I2C", sizeof(i2c_adapter->name));
+        strscpy(i2c_adapter->name, "Mantis I2C", sizeof(i2c_adapter->name));
         i2c_set_adapdata(i2c_adapter, mantis);
 
         i2c_adapter->owner      = THIS_MODULE;
diff --git a/drivers/media/pci/saa7134/saa7134-go7007.c b/drivers/media/pci/saa7134/saa7134-go7007.c
index 275c5e151818..626e130a9770 100644
--- a/drivers/media/pci/saa7134/saa7134-go7007.c
+++ b/drivers/media/pci/saa7134/saa7134-go7007.c
@@ -444,7 +444,7 @@ static int saa7134_go7007_init(struct saa7134_dev *dev)
         sd = &saa->sd;
         v4l2_subdev_init(sd, &saa7134_go7007_sd_ops);
         v4l2_set_subdevdata(sd, saa);
-        strncpy(sd->name, "saa7134-go7007", sizeof(sd->name));
+        strscpy(sd->name, "saa7134-go7007", sizeof(sd->name));
 
         /* Allocate a couple pages for receiving the compressed stream */
         saa->top = (u8 *)get_zeroed_page(GFP_KERNEL);