[media] media: i2c: remove duplicate checks for EPERM in dbg_g/s_register

This patch removes check for EPERM in dbg_g/s_register of subdevice
drivers as this check is already performed by core.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

17 files changed, 2 insertions, 72 deletions

diff --git a/drivers/media/i2c/ad9389b.c b/drivers/media/i2c/ad9389b.c
index 1d4e4e70e8f8..ade1fec7e040 100644
--- a/drivers/media/i2c/ad9389b.c
+++ b/drivers/media/i2c/ad9389b.c
@@ -347,8 +347,6 @@ static int ad9389b_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->val = ad9389b_rd(sd, reg->reg & 0xff);
         reg->size = 1;
         return 0;
@@ -360,8 +358,6 @@ static int ad9389b_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regi
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         ad9389b_wr(sd, reg->reg & 0xff, reg->val & 0xff);
         return 0;
 }
diff --git a/drivers/media/i2c/adv7183.c b/drivers/media/i2c/adv7183.c
index 42b2dec4ca3a..7c48e22b41a2 100644
--- a/drivers/media/i2c/adv7183.c
+++ b/drivers/media/i2c/adv7183.c
@@ -500,8 +500,6 @@ static int adv7183_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->val = adv7183_read(sd, reg->reg & 0xff);
         reg->size = 1;
         return 0;
@@ -513,8 +511,6 @@ static int adv7183_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regi
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         adv7183_write(sd, reg->reg & 0xff, reg->val & 0xff);
         return 0;
 }
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index 4cdcfc96aa56..5528cd15cc67 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -647,8 +647,6 @@ static int adv7604_g_register(struct v4l2_subdev *sd,
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->size = 1;
         switch (reg->reg >> 8) {
         case 0:
@@ -705,8 +703,6 @@ static int adv7604_s_register(struct v4l2_subdev *sd,
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         switch (reg->reg >> 8) {
         case 0:
                 io_write(sd, reg->reg & 0xff, reg->val & 0xff);
diff --git a/drivers/media/i2c/cs5345.c b/drivers/media/i2c/cs5345.c
index 841b9c49dcfa..2661757c3a8c 100644
--- a/drivers/media/i2c/cs5345.c
+++ b/drivers/media/i2c/cs5345.c
@@ -103,8 +103,6 @@ static int cs5345_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *r
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->size = 1;
         reg->val = cs5345_read(sd, reg->reg & 0x1f);
         return 0;
@@ -116,8 +114,6 @@ static int cs5345_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regis
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         cs5345_write(sd, reg->reg & 0x1f, reg->val & 0xff);
         return 0;
 }
diff --git a/drivers/media/i2c/cx25840/cx25840-core.c b/drivers/media/i2c/cx25840/cx25840-core.c
index bdfec4c768fe..b81e32f371ae 100644
--- a/drivers/media/i2c/cx25840/cx25840-core.c
+++ b/drivers/media/i2c/cx25840/cx25840-core.c
@@ -1664,8 +1664,6 @@ static int cx25840_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->size = 1;
         reg->val = cx25840_read(client, reg->reg & 0x0fff);
         return 0;
@@ -1677,8 +1675,6 @@ static int cx25840_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regi
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
         return 0;
 }
diff --git a/drivers/media/i2c/m52790.c b/drivers/media/i2c/m52790.c
index 0d153f3b1a5b..3eeb546be6d9 100644
--- a/drivers/media/i2c/m52790.c
+++ b/drivers/media/i2c/m52790.c
@@ -87,8 +87,6 @@ static int m52790_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *r
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         if (reg->reg != 0)
                 return -EINVAL;
         reg->size = 1;
@@ -103,8 +101,6 @@ static int m52790_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regis
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         if (reg->reg != 0)
                 return -EINVAL;
         state->input = reg->val & 0x0303;
diff --git a/drivers/media/i2c/mt9v011.c b/drivers/media/i2c/mt9v011.c
index c64c9d9e253d..141919bf77fc 100644
--- a/drivers/media/i2c/mt9v011.c
+++ b/drivers/media/i2c/mt9v011.c
@@ -411,8 +411,6 @@ static int mt9v011_g_register(struct v4l2_subdev *sd,
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
 
         reg->val = mt9v011_read(sd, reg->reg & 0xff);
         reg->size = 2;
@@ -427,8 +425,6 @@ static int mt9v011_s_register(struct v4l2_subdev *sd,
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
 
         mt9v011_write(sd, reg->reg & 0xff, reg->val & 0xffff);
 
diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c
index d71602f4fb43..b030279810d3 100644
--- a/drivers/media/i2c/ov7670.c
+++ b/drivers/media/i2c/ov7670.c
@@ -1479,8 +1479,6 @@ static int ov7670_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *r
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         ret = ov7670_read(sd, reg->reg & 0xff, &val);
         reg->val = val;
         reg->size = 1;
@@ -1493,8 +1491,6 @@ static int ov7670_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regis
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         ov7670_write(sd, reg->reg & 0xff, reg->val & 0xff);
         return 0;
 }
diff --git a/drivers/media/i2c/saa7115.c b/drivers/media/i2c/saa7115.c
index 8316ae448f4c..18cf0bfaf743 100644
--- a/drivers/media/i2c/saa7115.c
+++ b/drivers/media/i2c/saa7115.c
@@ -1464,8 +1464,6 @@ static int saa711x_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->val = saa711x_read(sd, reg->reg & 0xff);
         reg->size = 1;
         return 0;
@@ -1477,8 +1475,6 @@ static int saa711x_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regi
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         saa711x_write(sd, reg->reg & 0xff, reg->val & 0xff);
         return 0;
 }
diff --git a/drivers/media/i2c/saa7127.c b/drivers/media/i2c/saa7127.c
index 9882c83c1c93..d9c388103e7a 100644
--- a/drivers/media/i2c/saa7127.c
+++ b/drivers/media/i2c/saa7127.c
@@ -665,8 +665,6 @@ static int saa7127_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->val = saa7127_read(sd, reg->reg & 0xff);
         reg->size = 1;
         return 0;
@@ -678,8 +676,6 @@ static int saa7127_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regi
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         saa7127_write(sd, reg->reg & 0xff, reg->val & 0xff);
         return 0;
 }
diff --git a/drivers/media/i2c/saa717x.c b/drivers/media/i2c/saa717x.c
index 71328109642e..330a04c58939 100644
--- a/drivers/media/i2c/saa717x.c
+++ b/drivers/media/i2c/saa717x.c
@@ -981,8 +981,6 @@ static int saa717x_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->val = saa717x_read(sd, reg->reg);
         reg->size = 1;
         return 0;
@@ -996,8 +994,6 @@ static int saa717x_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regi
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         saa717x_write(sd, addr, val);
         return 0;
 }
diff --git a/drivers/media/i2c/ths7303.c b/drivers/media/i2c/ths7303.c
index c4339556a2ea..65853eea09a1 100644
--- a/drivers/media/i2c/ths7303.c
+++ b/drivers/media/i2c/ths7303.c
@@ -236,8 +236,6 @@ static int ths7303_g_register(struct v4l2_subdev *sd,
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
 
         reg->size = 1;
         reg->val = ths7303_read(sd, reg->reg);
@@ -251,8 +249,6 @@ static int ths7303_s_register(struct v4l2_subdev *sd,
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
 
         ths7303_write(sd, reg->reg, reg->val);
         return 0;
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index de9db3bf1ebd..b3cf26628c09 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -1054,8 +1054,6 @@ static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         res = tvp5150_read(sd, reg->reg & 0xff);
         if (res < 0) {
                 v4l2_err(sd, "%s: failed with error = %d\n", __func__, res);
@@ -1073,8 +1071,6 @@ static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regi
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
         return 0;
 }
diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c
index 81b4eb40d7a6..f339e6faca90 100644
--- a/drivers/media/i2c/tvp7002.c
+++ b/drivers/media/i2c/tvp7002.c
@@ -736,8 +736,7 @@ static int tvp7002_query_dv_timings(struct v4l2_subdev *sd,
  *
  * Get the value of a TVP7002 decoder device register.
  * Returns zero when successful, -EINVAL if register read fails or
- * access to I2C client fails, -EPERM if the call is not allowed
- * by disabled CAP_SYS_ADMIN.
+ * access to I2C client fails.
  */
 static int tvp7002_g_register(struct v4l2_subdev *sd,
                                                 struct v4l2_dbg_register *reg)
@@ -748,8 +747,6 @@ static int tvp7002_g_register(struct v4l2_subdev *sd,
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
 
         ret = tvp7002_read(sd, reg->reg & 0xff, &val);
         reg->val = val;
@@ -762,8 +759,7 @@ static int tvp7002_g_register(struct v4l2_subdev *sd,
  * @reg: ptr to v4l2_dbg_register struct
  *
  * Get the value of a TVP7002 decoder device register.
- * Returns zero when successful, -EINVAL if register read fails or
- * -EPERM if call not allowed.
+ * Returns zero when successful, -EINVAL if register read fails.
  */
 static int tvp7002_s_register(struct v4l2_subdev *sd,
                                                 const struct v4l2_dbg_register *reg)
@@ -772,8 +768,6 @@ static int tvp7002_s_register(struct v4l2_subdev *sd,
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
 
         return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff);
 }
diff --git a/drivers/media/i2c/upd64031a.c b/drivers/media/i2c/upd64031a.c
index 4283fc5f39ef..13a4cf8bebdf 100644
--- a/drivers/media/i2c/upd64031a.c
+++ b/drivers/media/i2c/upd64031a.c
@@ -168,8 +168,6 @@ static int upd64031a_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->val = upd64031a_read(sd, reg->reg & 0xff);
         reg->size = 1;
         return 0;
@@ -181,8 +179,6 @@ static int upd64031a_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_re
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         upd64031a_write(sd, reg->reg & 0xff, reg->val & 0xff);
         return 0;
 }
diff --git a/drivers/media/i2c/upd64083.c b/drivers/media/i2c/upd64083.c
index b2ac56ca22e6..e296639ab90e 100644
--- a/drivers/media/i2c/upd64083.c
+++ b/drivers/media/i2c/upd64083.c
@@ -126,8 +126,6 @@ static int upd64083_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->val = upd64083_read(sd, reg->reg & 0xff);
         reg->size = 1;
         return 0;
@@ -139,8 +137,6 @@ static int upd64083_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_reg
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         upd64083_write(sd, reg->reg & 0xff, reg->val & 0xff);
         return 0;
 }
diff --git a/drivers/media/i2c/vs6624.c b/drivers/media/i2c/vs6624.c
index 7b55b3ddd80f..d2209a35c510 100644
--- a/drivers/media/i2c/vs6624.c
+++ b/drivers/media/i2c/vs6624.c
@@ -741,8 +741,6 @@ static int vs6624_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *r
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         reg->val = vs6624_read(sd, reg->reg & 0xffff);
         reg->size = 1;
         return 0;
@@ -754,8 +752,6 @@ static int vs6624_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_regis
 
         if (!v4l2_chip_match_i2c_client(client, &reg->match))
                 return -EINVAL;
-        if (!capable(CAP_SYS_ADMIN))
-                return -EPERM;
         vs6624_write(sd, reg->reg & 0xffff, reg->val & 0xff);
         return 0;
 }