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Commit 3ff10850 authored by Harshdeep Dhatt's avatar Harshdeep Dhatt
Browse files

msm: kgsl: Purge a memfree entry correctly 



For the case when newly allocated gpuaddr falls between
a memfree entry's gpuaddr and size, the size of the mem
entry was being truncated to a negative value. Fix
the math to reflect the truncated size correctly.

Change-Id: Id39519acc2af106240db8f41539b9fd1dc0cb0eb
Signed-off-by: default avatarHarshdeep Dhatt <hdhatt@codeaurora.org>
parent d871aa00

drivers/gpu/msm/kgsl.c

+1 −1
Original line number Diff line number Diff line
@@ -185,7 +185,7 @@ static void kgsl_memfree_purge(pid_t ptname, uint64_t gpuaddr, 
		if (gpuaddr > entry->gpuaddr &&

			gpuaddr < entry->gpuaddr + entry->size) {

			/* truncate the end of the entry */

			entry->size = entry->gpuaddr - gpuaddr;

			entry->size = gpuaddr - entry->gpuaddr;

		} else if (gpuaddr <= entry->gpuaddr &&

			gpuaddr + size < entry->gpuaddr + entry->size)

			/* Truncate the beginning of the entry */