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drm/komeda: Add check for komeda_get_layer_fourcc_list()

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commit 79fc672a092d93a7eac24fe20a571d4efd8fa5a4 upstream.

Add check for the return value of komeda_get_layer_fourcc_list()
to catch the potential exception.

Fixes: 5d51f6c0da ("drm/komeda: Add writeback support")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://lore.kernel.org/r/20241219090256.146424-1-haoxiang_li2024@163.com
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Haoxiang Li 2024-12-19 17:02:56 +08:00 • committed by Greg Kroah-Hartman
commit 737c74bc17
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
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@ -159,6 +159,10 @@ static int komeda_wb_connector_add(struct komeda_kms_dev *kms,
formats = komeda_get_layer_fourcc_list(&mdev->fmt_tbl,
kwb_conn->wb_layer->layer_type,
&n_formats);
if (!formats) {
kfree(kwb_conn);
return -ENOMEM;
}
err = drm_writeback_connector_init(&kms->base, wb_conn,
&komeda_wb_connector_funcs,