drm/amdgpu: fix overflowed array index read warning

Clear overflowed array index read warning by cast operation.

Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 06f0a6534a94f78196e6f6db7f5f87899e14d071..15c2406564700feeeaa3625022cc59cb3cec2e52 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -473,8 +473,9 @@ static ssize_t amdgpu_debugfs_ring_read(struct file *f, char __user *buf,
                                        size_t size, loff_t *pos)
 {
        struct amdgpu_ring *ring = file_inode(f)->i_private;
-       int r, i;
        uint32_t value, result, early[3];
+       loff_t i;
+       int r;
 
        if (*pos & 3 || size & 3)
                return -EINVAL;