From f4b4718b61d1d5a7442a4fd6863ea80c3a10e508 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 24 Jan 2014 09:50:18 +1000 Subject: [PATCH] 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 --- drivers/gpu/drm/ast/ast_fb.c | 2 +- drivers/gpu/drm/cirrus/cirrus_fbdev.c | 2 +- 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 7b33e14..3f65dd6 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 e63a753..2fd4a92 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 005b60a..f9adc27 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) -- 2.7.4