[Bug 72425] New: divide by zero error in radeon_surface.c when opening chrome with WebGL enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=72425

          Priority: medium
            Bug ID: 72425
          Assignee: dri-devel at lists.freedesktop.org
           Summary: divide by zero error in radeon_surface.c when opening
                    chrome with WebGL enabled
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: crwulff at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: libdrm
           Product: DRI

Created attachment 90384
  --> https://bugs.freedesktop.org/attachment.cgi?id=90384&action=edit
Fix divide by zero in radeon_surface

Passing a tile_split of zero to eg_surface_init_2d causes a divide by zero
error. Launching chromium with WebGL enabled on a AMD Llano (A8-3850) exhibits
this behavior and webgl then fails to work. The attached patch fixes the
problem and allows WebGL to work in chrome on this platform.

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