Fix some warnings on x86_64

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i915/intel_ioctl.c b/src/mesa/drivers/dri/i915/intel_ioctl.c
index 82ad14ca11..d60d629afb 100644
--- a/src/mesa/drivers/dri/i915/intel_ioctl.c
+++ b/src/mesa/drivers/dri/i915/intel_ioctl.c
@@ -140,7 +140,7 @@ void intelRefillBatchLocked( intelContextPtr intel, GLboolean allow_unlock )
       fprintf(stderr, "%s: now using half %d\n", __FUNCTION__, buf);
 
    intel->batch.start_offset = intel->alloc.offset + buf * half;
-   intel->batch.ptr = (char *)intel->alloc.ptr + buf * half;
+   intel->batch.ptr = (unsigned char *)intel->alloc.ptr + buf * half;
    intel->batch.size = half - 8;
    intel->batch.space = half - 8;
    assert(intel->batch.space >= 0);