Searched hist:"0 eb3448aa6b31fbf24c31756aba7940cac5ad6b8" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/drivers/gpu/drm/radeon/ |
| H A D | radeon_ring.c | diff 0eb3448aa6b31fbf24c31756aba7940cac5ad6b8 Fri Sep 20 08:36:06 CDT 2013 Alex Ivanov <gnidorah@p0n4ik.tk> drm/radeon: Make r100_cp_ring_info() and radeon_ring_gfx() safe (v2)
Prevent NULL pointer dereference in case when radeon_ring_fini() did it's job.
Reading of r100_cp_ring_info and radeon_ring_gfx debugfs entries will lead to a KP if ring buffer was deallocated, e.g. on failed ring test.
Seen on PA-RISC machine having "radeon: ring test failed (scratch(0x8504)=0xCAFEDEAD)" issue.
v2: agd5f: add some parens around ring->ready check
Signed-off-by: Alex Ivanov <gnidorah@p0n4ik.tk>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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| H A D | r100.c | diff 0eb3448aa6b31fbf24c31756aba7940cac5ad6b8 Fri Sep 20 08:36:06 CDT 2013 Alex Ivanov <gnidorah@p0n4ik.tk> drm/radeon: Make r100_cp_ring_info() and radeon_ring_gfx() safe (v2)
Prevent NULL pointer dereference in case when radeon_ring_fini() did it's job.
Reading of r100_cp_ring_info and radeon_ring_gfx debugfs entries will lead to a KP if ring buffer was deallocated, e.g. on failed ring test.
Seen on PA-RISC machine having "radeon: ring test failed (scratch(0x8504)=0xCAFEDEAD)" issue.
v2: agd5f: add some parens around ring->ready check
Signed-off-by: Alex Ivanov <gnidorah@p0n4ik.tk>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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