diff options
| author | Miaoqian Lin <linmq006@gmail.com> | 2021-12-24 08:21:03 +0000 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-12-27 15:58:03 +0530 |
| commit | 399c91c3f30531593e5ff6ca7b53f47092128669 (patch) | |
| tree | c4bf15391296430225a3b605e69dccb27c18eb01 | |
| parent | 898c7a9ec81620125f2463714a0f4dea18ad6e54 (diff) | |
| download | linux-399c91c3f30531593e5ff6ca7b53f47092128669.tar.bz2 | |
phy: mediatek: Fix missing check in mtk_mipi_tx_probe
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>
| -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)) |