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| author | Miaoqian Lin <linmq006@gmail.com> | 2021-12-24 11:21:03 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 13:05:05 +0300 |
| commit | d543ba3a61d7788b3c6ba5684364aa5dc89619da (patch) | |
| tree | b8750706dc0ed3c6f0d8b1be5f834d1c4b3ae92d /drivers/phy | |
| parent | 5895474d218265645a24ecaf4afe6413c39bdb82 (diff) | |
| download | linux-d543ba3a61d7788b3c6ba5684364aa5dc89619da.tar.xz | |
phy: mediatek: Fix missing check in mtk_mipi_tx_probe
[ Upstream commit 399c91c3f30531593e5ff6ca7b53f47092128669 ]
The of_device_get_match_data() function may return NULL.
Add check to prevent potential null dereference.
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20211224082103.7658-1-linmq006@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/mediatek/phy-mtk-mipi-dsi.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c index 28ad9403c441..67b005d5b9e3 100644 --- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c +++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c @@ -146,6 +146,8 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev) return -ENOMEM; mipi_tx->driver_data = of_device_get_match_data(dev); + if (!mipi_tx->driver_data) + return -ENODEV; mipi_tx->regs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(mipi_tx->regs)) |