[media] radio: NUL terminate a user string

We pass this to fm_tx_set_radio_text() which expects a NUL terminated string. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
git-mirror · Nov 25, 2011 · 75c1ca3 · 75c1ca3
1 parent b698c78
commit 75c1ca3
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/media/radio/wl128x/fmdrv_v4l2.c b/drivers/media/radio/wl128x/fmdrv_v4l2.c
@@ -84,6 +84,7 @@ static ssize_t fm_v4l2_fops_write(struct file *file, const char __user * buf,
 	struct fmdev *fmdev;
 
 	ret = copy_from_user(&rds, buf, sizeof(rds));
+	rds.text[sizeof(rds.text) - 1] = '\0';
 	fmdbg("(%d)type: %d, text %s, af %d\n",
 		   ret, rds.text_type, rds.text, rds.af_freq);
 	if (ret)