diff options
| author | Dave Airlie <airlied@redhat.com> | 2014-01-24 03:50:18 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2014-01-29 04:51:52 +0400 |
| commit | f4b4718b61d1d5a7442a4fd6863ea80c3a10e508 (patch) | |
| tree | 315751b7a57c6b2e953b1013a58c1104fb2e6ca2 /drivers/gpu | |
| parent | 821b4db3b62139d51cf14090dfab07fb09cb3a6b (diff) | |
| download | linux-f4b4718b61d1d5a7442a4fd6863ea80c3a10e508.tar.xz | |
drm: ast,cirrus,mgag200: use drm_can_sleep
these 3 were checking in_interrupt but we have situations where
calling vunmap under this could cause a BUG to be hit in
smp_call_function_many. Use the drm_can_sleep macro instead,
which should stop this path from been taken in this case.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_fb.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/cirrus/cirrus_fbdev.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_fb.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c index 7b33e14e44aa..3f65dd6676b2 100644 --- a/drivers/gpu/drm/ast/ast_fb.c +++ b/drivers/gpu/drm/ast/ast_fb.c @@ -65,7 +65,7 @@ static void ast_dirty_update(struct ast_fbdev *afbdev, * then the BO is being moved and we should * store up the damage until later. */ - if (!in_interrupt()) + if (!drm_can_sleep()) ret = ast_bo_reserve(bo, true); if (ret) { if (ret != -EBUSY) diff --git a/drivers/gpu/drm/cirrus/cirrus_fbdev.c b/drivers/gpu/drm/cirrus/cirrus_fbdev.c index e63a7533f849..2fd4a92162cb 100644 --- a/drivers/gpu/drm/cirrus/cirrus_fbdev.c +++ b/drivers/gpu/drm/cirrus/cirrus_fbdev.c @@ -39,7 +39,7 @@ static void cirrus_dirty_update(struct cirrus_fbdev *afbdev, * then the BO is being moved and we should * store up the damage until later. */ - if (!in_interrupt()) + if (!drm_can_sleep()) ret = cirrus_bo_reserve(bo, true); if (ret) { if (ret != -EBUSY) diff --git a/drivers/gpu/drm/mgag200/mgag200_fb.c b/drivers/gpu/drm/mgag200/mgag200_fb.c index 005b60aa2a00..f9adc27ef32a 100644 --- a/drivers/gpu/drm/mgag200/mgag200_fb.c +++ b/drivers/gpu/drm/mgag200/mgag200_fb.c @@ -41,7 +41,7 @@ static void mga_dirty_update(struct mga_fbdev *mfbdev, * then the BO is being moved and we should * store up the damage until later. */ - if (!in_interrupt()) + if (!drm_can_sleep()) ret = mgag200_bo_reserve(bo, true); if (ret) { if (ret != -EBUSY) |