V4L/DVB (7904): v4l/tuner-core: consistent handling of return values

change check_mode and set_mode to return negative errors and fix all callers

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 15 insertions, 15 deletions

diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index a0f7bc1edaa2..1a9117457c8e 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -536,7 +536,7 @@ static void set_addr(struct i2c_client *c, struct tuner_setup *tun_setup)
 static inline int check_mode(struct tuner *t, char *cmd)
 {
         if ((1 << t->mode & t->mode_mask) == 0) {
-                return EINVAL;
+                return -EINVAL;
         }
 
         switch (t->mode) {
@@ -730,11 +730,11 @@ static inline int set_mode(struct i2c_client *client, struct tuner *t, int mode,
 
         t->mode = mode;
 
-        if (check_mode(t, cmd) == EINVAL) {
+        if (check_mode(t, cmd) == -EINVAL) {
                 t->mode = T_STANDBY;
                 if (analog_ops->standby)
                         analog_ops->standby(&t->fe);
-                return EINVAL;
+                return -EINVAL;
         }
         return 0;
 }
@@ -776,13 +776,13 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                 break;
         case AUDC_SET_RADIO:
                 if (set_mode(client, t, V4L2_TUNER_RADIO, "AUDC_SET_RADIO")
-                                == EINVAL)
+                                == -EINVAL)
                         return 0;
                 if (t->radio_freq)
                         set_freq(client, t->radio_freq);
                 break;
         case TUNER_SET_STANDBY:
-                if (check_mode(t, "TUNER_SET_STANDBY") == EINVAL)
+                if (check_mode(t, "TUNER_SET_STANDBY") == -EINVAL)
                         return 0;
                 t->mode = T_STANDBY;
                 if (analog_ops->standby)
@@ -790,7 +790,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                 break;
 #ifdef CONFIG_VIDEO_ALLOW_V4L1
         case VIDIOCSAUDIO:
-                if (check_mode(t, "VIDIOCSAUDIO") == EINVAL)
+                if (check_mode(t, "VIDIOCSAUDIO") == -EINVAL)
                         return 0;
                 if (check_v4l2(t) == EINVAL)
                         return 0;
@@ -813,7 +813,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                         if (check_v4l2(t) == EINVAL)
                                 return 0;
 
-                        if (set_mode(client,t,V4L2_TUNER_ANALOG_TV, "VIDIOCSCHAN")==EINVAL)
+                        if (set_mode(client,t,V4L2_TUNER_ANALOG_TV, "VIDIOCSCHAN")==-EINVAL)
                                 return 0;
 
                         if (vc->norm < ARRAY_SIZE(map))
@@ -827,7 +827,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                 {
                         unsigned long *v = arg;
 
-                        if (check_mode(t, "VIDIOCSFREQ") == EINVAL)
+                        if (check_mode(t, "VIDIOCSFREQ") == -EINVAL)
                                 return 0;
                         if (check_v4l2(t) == EINVAL)
                                 return 0;
@@ -839,7 +839,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                 {
                         struct video_tuner *vt = arg;
 
-                        if (check_mode(t, "VIDIOCGTUNER") == EINVAL)
+                        if (check_mode(t, "VIDIOCGTUNER") == -EINVAL)
                                 return 0;
                         if (check_v4l2(t) == EINVAL)
                                 return 0;
@@ -883,7 +883,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                 {
                         struct video_audio *va = arg;
 
-                        if (check_mode(t, "VIDIOCGAUDIO") == EINVAL)
+                        if (check_mode(t, "VIDIOCGAUDIO") == -EINVAL)
                                 return 0;
                         if (check_v4l2(t) == EINVAL)
                                 return 0;
@@ -925,7 +925,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                         v4l2_std_id *id = arg;
 
                         if (set_mode (client, t, V4L2_TUNER_ANALOG_TV, "VIDIOC_S_STD")
-                                        == EINVAL)
+                                        == -EINVAL)
                                 return 0;
 
                         switch_v4l2();
@@ -941,7 +941,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                         struct v4l2_frequency *f = arg;
 
                         if (set_mode (client, t, f->type, "VIDIOC_S_FREQUENCY")
-                                        == EINVAL)
+                                        == -EINVAL)
                                 return 0;
                         switch_v4l2();
                         set_freq(client,f->frequency);
@@ -952,7 +952,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                 {
                         struct v4l2_frequency *f = arg;
 
-                        if (check_mode(t, "VIDIOC_G_FREQUENCY") == EINVAL)
+                        if (check_mode(t, "VIDIOC_G_FREQUENCY") == -EINVAL)
                                 return 0;
                         switch_v4l2();
                         f->type = t->mode;
@@ -973,7 +973,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                 {
                         struct v4l2_tuner *tuner = arg;
 
-                        if (check_mode(t, "VIDIOC_G_TUNER") == EINVAL)
+                        if (check_mode(t, "VIDIOC_G_TUNER") == -EINVAL)
                                 return 0;
                         switch_v4l2();
 
@@ -1020,7 +1020,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                 {
                         struct v4l2_tuner *tuner = arg;
 
-                        if (check_mode(t, "VIDIOC_S_TUNER") == EINVAL)
+                        if (check_mode(t, "VIDIOC_S_TUNER") == -EINVAL)
                                 return 0;
 
                         switch_v4l2();