drm/radeon/kms: fix bad shift in atom iio table parser

commit 8e461123f28e6b17456225e70eb834b3b30d28bb upstream.

Noticed by Patrick Lowry.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
index b1f929d4e1aaad288a40983cee6185f41396a52f..052312f5ff979df51496d769e8587b477d5e7c75 100644 (file)
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -128,7 +128,7 @@ static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
                case ATOM_IIO_MOVE_INDEX:
                        temp &=
                            ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
-                             CU8(base + 2));
+                             CU8(base + 3));
                        temp |=
                            ((index >> CU8(base + 2)) &
                             (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
@@ -138,7 +138,7 @@ static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
                case ATOM_IIO_MOVE_DATA:
                        temp &=
                            ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
-                             CU8(base + 2));
+                             CU8(base + 3));
                        temp |=
                            ((data >> CU8(base + 2)) &
                             (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
@@ -148,7 +148,7 @@ static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
                case ATOM_IIO_MOVE_ATTR:
                        temp &=
                            ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
-                             CU8(base + 2));
+                             CU8(base + 3));
                        temp |=
                            ((ctx->
                              io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -