Commit debbc7bb authored Dec 04, 2015 by Dhaval Patel

msm: mdss: fix vbif debug bus dump in log



Invalid memory access during vbif debug bus
dump in log leads to crash. This adds null
check before accessing debug bus memory.

Change-Id: I54b74ce1004c4246398f18cd1a262e29a0a20d20
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>

parent ec7db6c5

drivers/video/msm/mdss/mdss_debug_xlog.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -396,6 +396,7 @@ static void mdss_dump_vbif_debug_bus(u32 bus_dump_flag,
		wmb();

		__vbif_debug_bus(head, vbif_base, dump_addr, in_log);
		if (dump_addr)
		dump_addr += (head->block_cnt * head->test_pnt_cnt * 4);
		}