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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2013-10-15 12:24:45 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-12-18 06:40:30 -0200 |
| commit | 8aab72bb0797321c6f6867f240da1e8c28bf040c (patch) | |
| tree | dcfa63fee5ec3857439b0412c0b671c4f1ab0013 /drivers/media/radio | |
| parent | cc6d618fdf56df389e46be2f0c9f2d1579d8b9e6 (diff) | |
| download | linux-8aab72bb0797321c6f6867f240da1e8c28bf040c.tar.gz linux-8aab72bb0797321c6f6867f240da1e8c28bf040c.tar.bz2 linux-8aab72bb0797321c6f6867f240da1e8c28bf040c.zip | |
[media] si4713: si4713_set_rds_radio_text overwrites terminating \0
si4713_set_rds_radio_text will overwrite the terminating zero at the
end of the rds radio text string in order to send out a carriage return
as per the RDS spec.
Use a separate char buffer for the CR instead of corrupting the control
string.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Eduardo Valentin <edubezval@gmail.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/radio')
| -rw-r--r-- | drivers/media/radio/si4713/si4713.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/media/radio/si4713/si4713.c b/drivers/media/radio/si4713/si4713.c index 097d4e09b491..17e0106a771b 100644 --- a/drivers/media/radio/si4713/si4713.c +++ b/drivers/media/radio/si4713/si4713.c @@ -831,8 +831,9 @@ static int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name) return rval; } -static int si4713_set_rds_radio_text(struct si4713_device *sdev, char *rt) +static int si4713_set_rds_radio_text(struct si4713_device *sdev, const char *rt) { + static const char cr[RDS_RADIOTEXT_BLK_SIZE] = { RDS_CARRIAGE_RETURN, 0 }; int rval = 0, i; u16 t_index = 0; u8 b_index = 0, cr_inserted = 0; @@ -856,7 +857,7 @@ static int si4713_set_rds_radio_text(struct si4713_device *sdev, char *rt) for (i = 0; i < RDS_RADIOTEXT_BLK_SIZE; i++) { if (!rt[t_index + i] || rt[t_index + i] == RDS_CARRIAGE_RETURN) { - rt[t_index + i] = RDS_CARRIAGE_RETURN; + rt = cr; cr_inserted = 1; break; } |