V4L/DVB (13547): radio: add trivial checks on the tuner and type args.

Many radio drivers did not check the tuner and type field correctly
for g/s_frequency. These checks have now been added.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

14 files changed, 55 insertions, 1 deletions

diff --git a/drivers/media/radio/radio-aimslab.c b/drivers/media/radio/radio-aimslab.c
index 35edee009ba8..5bf4985daede 100644
--- a/drivers/media/radio/radio-aimslab.c
+++ b/drivers/media/radio/radio-aimslab.c
@@ -268,6 +268,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct rtrack *rt = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         rt_setfreq(rt, f->frequency);
         return 0;
 }
@@ -277,6 +279,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct rtrack *rt = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = rt->curfreq;
         return 0;
diff --git a/drivers/media/radio/radio-aztech.c b/drivers/media/radio/radio-aztech.c
index 8daf809eb01a..c22311393624 100644
--- a/drivers/media/radio/radio-aztech.c
+++ b/drivers/media/radio/radio-aztech.c
@@ -254,6 +254,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct aztech *az = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         az_setfreq(az, f->frequency);
         return 0;
 }
@@ -263,6 +265,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct aztech *az = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = az->curfreq;
         return 0;
diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c
index c6cf11661868..000f4d34087c 100644
--- a/drivers/media/radio/radio-gemtek-pci.c
+++ b/drivers/media/radio/radio-gemtek-pci.c
@@ -240,6 +240,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct gemtek_pci *card = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         if (f->frequency < GEMTEK_PCI_RANGE_LOW ||
             f->frequency > GEMTEK_PCI_RANGE_HIGH)
                 return -EINVAL;
@@ -253,6 +255,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct gemtek_pci *card = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = card->current_frequency;
         return 0;
diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c
index 64d737c35acf..f8213b7c8ddc 100644
--- a/drivers/media/radio/radio-maestro.c
+++ b/drivers/media/radio/radio-maestro.c
@@ -200,6 +200,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct maestro *dev = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         if (f->frequency < FREQ_LO || f->frequency > FREQ_HI)
                 return -EINVAL;
         mutex_lock(&dev->lock);
@@ -213,6 +215,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct maestro *dev = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         mutex_lock(&dev->lock);
         f->frequency = BITS2FREQ(radio_bits_get(dev));
diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
index 3da51fe8fb93..44b4dbedb322 100644
--- a/drivers/media/radio/radio-maxiradio.c
+++ b/drivers/media/radio/radio-maxiradio.c
@@ -262,6 +262,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct maxiradio *dev = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         if (f->frequency < FREQ_LO || f->frequency > FREQ_HI) {
                 dprintk(dev, 1, "radio freq (%d.%02d MHz) out of range (%d-%d)\n",
                                         f->frequency / 16000,
@@ -285,6 +287,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct maxiradio *dev = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = dev->freq;
 
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index 949f60513d9e..02a9cefc9a00 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -374,6 +374,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct amradio_device *radio = file->private_data;
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         return amradio_setfreq(radio, f->frequency);
 }
 
@@ -383,6 +385,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct amradio_device *radio = file->private_data;
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = radio->curfreq;
 
diff --git a/drivers/media/radio/radio-rtrack2.c b/drivers/media/radio/radio-rtrack2.c
index 9cb193fa6e33..a79296aac9a9 100644
--- a/drivers/media/radio/radio-rtrack2.c
+++ b/drivers/media/radio/radio-rtrack2.c
@@ -167,6 +167,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct rtrack2 *rt = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         rt_setfreq(rt, f->frequency);
         return 0;
 }
@@ -176,6 +178,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct rtrack2 *rt = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = rt->curfreq;
         return 0;
diff --git a/drivers/media/radio/radio-sf16fmi.c b/drivers/media/radio/radio-sf16fmi.c
index 49c4aab95dab..93990b7899ec 100644
--- a/drivers/media/radio/radio-sf16fmi.c
+++ b/drivers/media/radio/radio-sf16fmi.c
@@ -168,6 +168,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct fmi *fmi = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         if (f->frequency < RSF16_MINFREQ ||
                         f->frequency > RSF16_MAXFREQ)
                 return -EINVAL;
@@ -182,6 +184,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct fmi *fmi = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = fmi->curfreq;
         return 0;
diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c
index a11414f648d4..52c7bbb32b8b 100644
--- a/drivers/media/radio/radio-sf16fmr2.c
+++ b/drivers/media/radio/radio-sf16fmr2.c
@@ -251,6 +251,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct fmr2 *fmr2 = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         if (f->frequency < RSF16_MINFREQ ||
                         f->frequency > RSF16_MAXFREQ)
                 return -EINVAL;
@@ -272,6 +274,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct fmr2 *fmr2 = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = fmr2->curfreq;
         return 0;
diff --git a/drivers/media/radio/radio-tea5764.c b/drivers/media/radio/radio-tea5764.c
index 3cd76dddb6aa..730ffd9cdd3e 100644
--- a/drivers/media/radio/radio-tea5764.c
+++ b/drivers/media/radio/radio-tea5764.c
@@ -349,7 +349,7 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct tea5764_device *radio = video_drvdata(file);
 
-        if (f->tuner != 0)
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
                 return -EINVAL;
         if (f->frequency == 0) {
                 /* We special case this as a power down control. */
@@ -370,6 +370,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
         struct tea5764_device *radio = video_drvdata(file);
         struct tea5764_regs *r = &radio->regs;
 
+        if (f->tuner != 0)
+                return -EINVAL;
         tea5764_i2c_read(radio);
         memset(f, 0, sizeof(f));
         f->type = V4L2_TUNER_RADIO;
diff --git a/drivers/media/radio/radio-terratec.c b/drivers/media/radio/radio-terratec.c
index 699db9acaaf7..fc1c860fd438 100644
--- a/drivers/media/radio/radio-terratec.c
+++ b/drivers/media/radio/radio-terratec.c
@@ -240,6 +240,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct terratec *tt = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         tt_setfreq(tt, f->frequency);
         return 0;
 }
@@ -249,6 +251,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct terratec *tt = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = tt->curfreq;
         return 0;
diff --git a/drivers/media/radio/radio-trust.c b/drivers/media/radio/radio-trust.c
index 6f9ecc359356..9d6dcf8af5b0 100644
--- a/drivers/media/radio/radio-trust.c
+++ b/drivers/media/radio/radio-trust.c
@@ -239,6 +239,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct trust *tr = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         tr_setfreq(tr, f->frequency);
         return 0;
 }
@@ -248,6 +250,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct trust *tr = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = tr->curfreq;
         return 0;
diff --git a/drivers/media/radio/radio-typhoon.c b/drivers/media/radio/radio-typhoon.c
index 3a98f1399495..03439282dfce 100644
--- a/drivers/media/radio/radio-typhoon.c
+++ b/drivers/media/radio/radio-typhoon.c
@@ -207,6 +207,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct typhoon *dev = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = dev->curfreq;
         return 0;
@@ -217,6 +219,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct typhoon *dev = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         dev->curfreq = f->frequency;
         typhoon_setfreq(dev, dev->curfreq);
         return 0;
diff --git a/drivers/media/radio/radio-zoltrix.c b/drivers/media/radio/radio-zoltrix.c
index 80e98b6422fe..f31eab99c943 100644
--- a/drivers/media/radio/radio-zoltrix.c
+++ b/drivers/media/radio/radio-zoltrix.c
@@ -266,6 +266,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
         struct zoltrix *zol = video_drvdata(file);
 
+        if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+                return -EINVAL;
         if (zol_setfreq(zol, f->frequency) != 0)
                 return -EINVAL;
         return 0;
@@ -276,6 +278,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
         struct zoltrix *zol = video_drvdata(file);
 
+        if (f->tuner != 0)
+                return -EINVAL;
         f->type = V4L2_TUNER_RADIO;
         f->frequency = zol->curfreq;
         return 0;