redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

drm/gma500: fix double free of gma_connector 

[ Upstream commit 4e19d51ca5 ]

clang static analysis reports this problem:

cdv_intel_dp.c:2101:2: warning: Attempt to free released memory
        kfree(gma_connector);
        ^~~~~~~~~~~~~~~~~~~~

In cdv_intel_dp_init() when the call to cdv_intel_edp_panel_vdd_off()
fails, the handler calls cdv_intel_dp_destroy(connector) which does
the first free of gma_connector. So adjust the goto label and skip
the second free.

Fixes: d112a8163f ("gma500/cdv: Add eDP support")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20201003193928.18869-1-trix@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Tom Rix 2020-10-03 12:39:28 -07:00 committed by Greg Kroah-Hartman
parent de630248e7
commit 37028b8bc5
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/gma500/cdv_intel_dp.c
View File

@ -2125,7 +2125,7 @@ cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev
DRM_INFO("failed to retrieve link info, disabling eDP\n");
cdv_intel_dp_encoder_destroy(encoder);
cdv_intel_dp_destroy(connector);
goto err_priv;
goto err_connector;
} else {
DRM_DEBUG_KMS("DPCD: Rev=%x LN_Rate=%x LN_CNT=%x LN_DOWNSP=%x\n",
intel_dp->dpcd[0], intel_dp->dpcd[1],