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Date: Wed, 22 Sep 2010 00:49:27 -0400
From: Alex Deucher <alexdeucher@...il.com>
To: Daniel J Blueman <daniel.blueman@...il.com>
Cc: Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [2.6.36-rc5] DRM resource leak fixes...
On Tue, Sep 21, 2010 at 12:55 PM, Daniel J Blueman
<daniel.blueman@...il.com> wrote:
> Hi Alex; for your review:
>
> Fix up some indirect and scratch buffer leaks, and correctly release a
> buffer object along various error paths.
These look good to me.
Reviewed-by: Alex Deucher <alexdeucher@...il.com>
>
> diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> index e817a0b..5a7d6a0 100644
> --- a/drivers/gpu/drm/radeon/r100.c
> +++ b/drivers/gpu/drm/radeon/r100.c
> @@ -3540,9 +3540,9 @@ int r100_ib_test(struct radeon_device *rdev)
> }
> WREG32(scratch, 0xCAFEDEAD);
> r = radeon_ib_get(rdev, &ib);
> - if (r) {
> - return r;
> - }
> + if (r)
> + goto out2;
> +
> ib->ptr[0] = PACKET0(scratch, 0);
> ib->ptr[1] = 0xDEADBEEF;
> ib->ptr[2] = PACKET2(0);
> @@ -3553,15 +3553,13 @@ int r100_ib_test(struct radeon_device *rdev)
> ib->ptr[7] = PACKET2(0);
> ib->length_dw = 8;
> r = radeon_ib_schedule(rdev, ib);
> - if (r) {
> - radeon_scratch_free(rdev, scratch);
> - radeon_ib_free(rdev, &ib);
> - return r;
> - }
> + if (r)
> + goto out1;
> +
> r = radeon_fence_wait(ib->fence, false);
> - if (r) {
> - return r;
> - }
> + if (r)
> + goto out1;
> +
> for (i = 0; i < rdev->usec_timeout; i++) {
> tmp = RREG32(scratch);
> if (tmp == 0xDEADBEEF) {
> @@ -3576,8 +3574,10 @@ int r100_ib_test(struct radeon_device *rdev)
> scratch, tmp);
> r = -EINVAL;
> }
> - radeon_scratch_free(rdev, scratch);
> +out1:
> radeon_ib_free(rdev, &ib);
> +out2:
> + radeon_scratch_free(rdev, scratch);
> return r;
> }
>
> diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> index afc18d8..bfdfa3e 100644
> --- a/drivers/gpu/drm/radeon/r600.c
> +++ b/drivers/gpu/drm/radeon/r600.c
> @@ -2689,7 +2689,7 @@ int r600_ib_test(struct radeon_device *rdev)
> r = radeon_ib_get(rdev, &ib);
> if (r) {
> DRM_ERROR("radeon: failed to get ib (%d).\n", r);
> - return r;
> + goto out2;
> }
> ib->ptr[0] = PACKET3(PACKET3_SET_CONFIG_REG, 1);
> ib->ptr[1] = ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
> @@ -2710,15 +2710,13 @@ int r600_ib_test(struct radeon_device *rdev)
> ib->length_dw = 16;
> r = radeon_ib_schedule(rdev, ib);
> if (r) {
> - radeon_scratch_free(rdev, scratch);
> - radeon_ib_free(rdev, &ib);
> DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
> - return r;
> + goto out1;
> }
> r = radeon_fence_wait(ib->fence, false);
> if (r) {
> DRM_ERROR("radeon: fence wait failed (%d).\n", r);
> - return r;
> + goto out1;
> }
> for (i = 0; i < rdev->usec_timeout; i++) {
> tmp = RREG32(scratch);
> @@ -2733,8 +2731,10 @@ int r600_ib_test(struct radeon_device *rdev)
> scratch, tmp);
> r = -EINVAL;
> }
> - radeon_scratch_free(rdev, scratch);
> +out1:
> radeon_ib_free(rdev, &ib);
> +out2:
> + radeon_scratch_free(rdev, scratch);
> return r;
> }
>
> diff --git a/drivers/gpu/drm/radeon/r600_blit_kms.c
> b/drivers/gpu/drm/radeon/r600_blit_kms.c
> index d13622a..e532a81 100644
> --- a/drivers/gpu/drm/radeon/r600_blit_kms.c
> +++ b/drivers/gpu/drm/radeon/r600_blit_kms.c
> @@ -492,6 +492,7 @@ int r600_blit_init(struct radeon_device *rdev)
> r = radeon_bo_kmap(rdev->r600_blit.shader_obj, &ptr);
> if (r) {
> DRM_ERROR("failed to map blit object %d\n", r);
> + radeon_bo_unreserve(rdev->r600_blit.shader_obj);
> return r;
> }
> if (rdev->family >= CHIP_RV770)
> --
> Daniel J Blueman
>
--
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