regmap: mmio: convert some error returns to BUG()

Some of the error conditions detected by regmap_mmio_*() are pure internal
errors, rather than user-/client-triggerable conditions. Convert these to
BUG().

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 8 insertions, 8 deletions

diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c
index 1a7b5ee11ab..ffa0e850839 100644
--- a/drivers/base/regmap/regmap-mmio.c
+++ b/drivers/base/regmap/regmap-mmio.c
@@ -35,8 +35,8 @@ static int regmap_mmio_gather_write(void *context,
         struct regmap_mmio_context *ctx = context;
         u32 offset;
 
-        if (reg_size != 4)
-                return -EIO;
+        BUG_ON(reg_size != 4);
+
         if (val_size % ctx->val_bytes)
                 return -EIO;
 
@@ -60,7 +60,7 @@ static int regmap_mmio_gather_write(void *context,
 #endif
                 default:
                         /* Should be caught by regmap_mmio_check_config */
-                        return -EIO;
+                        BUG();
                 }
                 val_size -= ctx->val_bytes;
                 val += ctx->val_bytes;
@@ -72,8 +72,8 @@ static int regmap_mmio_gather_write(void *context,
 
 static int regmap_mmio_write(void *context, const void *data, size_t count)
 {
-        if (count < 4)
-                return -EIO;
+        BUG_ON(count < 4);
+
         return regmap_mmio_gather_write(context, data, 4, data + 4, count - 4);
 }
 
@@ -84,8 +84,8 @@ static int regmap_mmio_read(void *context,
         struct regmap_mmio_context *ctx = context;
         u32 offset;
 
-        if (reg_size != 4)
-                return -EIO;
+        BUG_ON(reg_size != 4);
+
         if (val_size % ctx->val_bytes)
                 return -EIO;
 
@@ -109,7 +109,7 @@ static int regmap_mmio_read(void *context,
 #endif
                 default:
                         /* Should be caught by regmap_mmio_check_config */
-                        return -EIO;
+                        BUG();
                 }
                 val_size -= ctx->val_bytes;
                 val += ctx->val_bytes;