diff options
| author | Yang Yingliang <[email protected]> | 2023-11-30 15:50:16 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2024-01-25 15:27:33 -0800 |
| commit | c4ff55408187f2595066967047363ca84e76db85 (patch) | |
| tree | a87ef1be218953482172cf7e494bfd08d2eb5199 | |
| parent | 048cbfd6050a359a893e961baa4727288bf8ffd1 (diff) | |
| download | linux-c4ff55408187f2595066967047363ca84e76db85.tar.gz | |
drm/radeon: check the alloc_workqueue return value in radeon_crtc_init()
[ Upstream commit 7a2464fac80d42f6f8819fed97a553e9c2f43310 ]
check the alloc_workqueue return value in radeon_crtc_init()
to avoid null-ptr-deref.
Fixes: fa7f517cb26e ("drm/radeon: rework page flip handling v4")
Signed-off-by: Yang Yingliang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index ca5598ae8bfcf7..1814bb8e14f100 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -687,11 +687,16 @@ static void radeon_crtc_init(struct drm_device *dev, int index) if (radeon_crtc == NULL) return; + radeon_crtc->flip_queue = alloc_workqueue("radeon-crtc", WQ_HIGHPRI, 0); + if (!radeon_crtc->flip_queue) { + kfree(radeon_crtc); + return; + } + drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs); drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256); radeon_crtc->crtc_id = index; - radeon_crtc->flip_queue = alloc_workqueue("radeon-crtc", WQ_HIGHPRI, 0); rdev->mode_info.crtcs[index] = radeon_crtc; if (rdev->family >= CHIP_BONAIRE) { |