* [patch] [media] radio: NUL terminate a user string
@ 2011-11-23 6:45 Dan Carpenter
0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2011-11-23 6:45 UTC (permalink / raw)
To: Mauro Carvalho Chehab
Cc: Hans Verkuil, Paul Gortmaker, Hans de Goede, Manjunatha Halli,
linux-media, kernel-janitors
We pass this to fm_tx_set_radio_text() which expects a NUL terminated
string.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/media/radio/wl128x/fmdrv_v4l2.c b/drivers/media/radio/wl128x/fmdrv_v4l2.c
index 4f5c43d..077d369 100644
--- 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)
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