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drm/radeon: fix semaphore value init

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Semaphore values have 64 bits, not 32. This fixes a very subtle bug
that disables synchronization when the upper 32bits wasn't zero.

Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Reviewed-By: Grigori Goronzy <greg@chown.ath.cx>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2014-09-07 12:06:52 +02:00 committed by Alex Deucher
parent b6c2b4faf9
commit f229407da7
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/radeon/radeon_semaphore.c
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@ -34,7 +34,7 @@
int radeon_semaphore_create(struct radeon_device *rdev, int radeon_semaphore_create(struct radeon_device *rdev,
struct radeon_semaphore **semaphore) struct radeon_semaphore **semaphore)
{ {
uint32_t *cpu_addr; uint64_t *cpu_addr;
int i, r; int i, r;
*semaphore = kmalloc(sizeof(struct radeon_semaphore), GFP_KERNEL); *semaphore = kmalloc(sizeof(struct radeon_semaphore), GFP_KERNEL);