From: Jiasheng Jiang Date: Thu, 30 Dec 2021 10:11:37 +0800 Subject: scsi: nsp_cs: Check of ioremap return value Git-commit: 2576e153cd982d540b212e989458edc42ad1b390 Patch-mainline: v5.17-rc1 References: git-fixes Since it is possible for ioremap() to fail, 'data->MmioAddress' could be NULL. Skip entry if ioremap() fails. Link: https://lore.kernel.org/r/20211230021137.1823352-1-jiasheng@iscas.ac.cn Fixes: 0e6f9d270840 ("pcmcia: use pcmcia_loop_config in scsi pcmcia drivers") Signed-off-by: Jiasheng Jiang Signed-off-by: Martin K. Petersen Acked-by: Lee Duncan --- drivers/scsi/pcmcia/nsp_cs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c index 8b9e889bc306..92c818a8a84a 100644 --- a/drivers/scsi/pcmcia/nsp_cs.c +++ b/drivers/scsi/pcmcia/nsp_cs.c @@ -1557,6 +1557,9 @@ static int nsp_cs_config_check(struct pcmcia_device *p_dev, void *priv_data) data->MmioAddress = (unsigned long) ioremap(p_dev->resource[2]->start, resource_size(p_dev->resource[2])); + if (!data->MmioAddress) + goto next_entry; + data->MmioLength = resource_size(p_dev->resource[2]); } /* If we got this far, we're cool! */