| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.13 101/120] drm: ast,cirrus,mgag200: use drm_can_sleep | Date | Tue, 11 Feb 2014 11:05:42 -0800 |
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3.13-stable review patch. If anyone has any objections, please let me know.
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From: Dave Airlie <airlied@redhat.com>
commit f4b4718b61d1d5a7442a4fd6863ea80c3a10e508 upstream.
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.
Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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(-)
--- 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_ * 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) --- 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 c * 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) --- 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_ * 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)
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