diff options
| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-04-26 16:49:12 +0800 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2022-04-27 17:15:07 +0200 |
| commit | ddf66aefd685fd46500b9917333e1b1e118276dc (patch) | |
| tree | 40b32d679f783750cd42d150186704fc46059567 /drivers/mtd | |
| parent | a28ed09dafee20da51eb26452950839633afd824 (diff) | |
mtd: rawnand: intel: fix possible null-ptr-deref in ebu_nand_probe()
It will cause null-ptr-deref when using 'res', if platform_get_resource()
returns NULL, so move using 'res' after devm_ioremap_resource() that
will check it to avoid null-ptr-deref.
Fixes: 0b1039f016e8 ("mtd: rawnand: Add NAND controller support on Intel LGM SoC")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220426084913.4021868-2-yangyingliang@huawei.com
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/raw/intel-nand-controller.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/raw/intel-nand-controller.c b/drivers/mtd/nand/raw/intel-nand-controller.c index 7c1c80dae826..e91b879b32bd 100644 --- a/drivers/mtd/nand/raw/intel-nand-controller.c +++ b/drivers/mtd/nand/raw/intel-nand-controller.c @@ -619,9 +619,9 @@ static int ebu_nand_probe(struct platform_device *pdev) resname = devm_kasprintf(dev, GFP_KERNEL, "nand_cs%d", cs); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, resname); ebu_host->cs[cs].chipaddr = devm_ioremap_resource(dev, res); - ebu_host->cs[cs].nand_pa = res->start; if (IS_ERR(ebu_host->cs[cs].chipaddr)) return PTR_ERR(ebu_host->cs[cs].chipaddr); + ebu_host->cs[cs].nand_pa = res->start; ebu_host->clk = devm_clk_get(dev, NULL); if (IS_ERR(ebu_host->clk)) |