________________________________________ Von: [email protected] <[email protected]> im Auftrag von Christophe JAILLET <[email protected]> Gesendet: Sonntag, 8. März 2020 10:26 An: [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected] Cc: [email protected]; [email protected]; [email protected]; [email protected]; Christophe JAILLET Betreff: [PATCH] drm/amdgpu/display: Fix an error handling path in 'dm_update_crtc_state()'
'dc_stream_release()' may be called twice. Once here, and once below in the error handling path if we branch to the 'fail' label. Set 'new_stream' to NULL, once released to avoid the duplicated release function call. Signed-off-by: Christophe JAILLET <[email protected]> --- Maybe the 'goto fail' at line 7745 should be turned into a 'return ret' instead. Could be clearer. No Fixes tag provided because I've not been able to dig deep enough in the git history. --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 97c1b01c0fc1..9d7773a77c4f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -7704,8 +7704,10 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm, skip_modeset: /* Release extra reference */ - if (new_stream) - dc_stream_release(new_stream); + if (new_stream) { + dc_stream_release(new_stream); + new_stream = NULL; + } dc_stream_release() is NULL-checked, so the if can be dropped. re, wh /* * We want to do dc stream updates that do not require a -- 2.20.1 _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
