From ce6696bc5ece1a3f86d6f6c228d02839b2b375cc Mon Sep 17 00:00:00 2001 From: Ilija Hadzic Date: Mon, 7 Jan 2013 18:21:58 -0500 Subject: drm/radeon: fix a bogus kfree commit a6b7e1a02b77ab8fe8775d20a88c53d8ba55482e upstream. parser->chunks[.].kpage[.] is not always kmalloc-ed by the parser initialization, so parser_fini should not try to kfree it if it didn't allocate it. This patch fixes a kernel oops that can be provoked in UMS mode. Signed-off-by: Ilija Hadzic Signed-off-by: Alex Deucher Signed-off-by: Shuah Khan Cc: CAI Qian Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/radeon/r600_cs.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c index 211c40252fe0..1a8594b00bd4 100644 --- a/drivers/gpu/drm/radeon/r600_cs.c +++ b/drivers/gpu/drm/radeon/r600_cs.c @@ -2429,8 +2429,10 @@ static void r600_cs_parser_fini(struct radeon_cs_parser *parser, int error) kfree(parser->relocs); for (i = 0; i < parser->nchunks; i++) { kfree(parser->chunks[i].kdata); - kfree(parser->chunks[i].kpage[0]); - kfree(parser->chunks[i].kpage[1]); + if (parser->rdev && (parser->rdev->flags & RADEON_IS_AGP)) { + kfree(parser->chunks[i].kpage[0]); + kfree(parser->chunks[i].kpage[1]); + } } kfree(parser->chunks); kfree(parser->chunks_array); -- cgit v1.2.3