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scsi: nsp_cs: Check of ioremap return value

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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: 0e6f9d2708 ("pcmcia: use pcmcia_loop_config in scsi pcmcia drivers")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Jiasheng Jiang 2021-12-30 10:11:37 +08:00 committed by Martin K. Petersen
parent 3ba880a12d
commit 2576e153cd
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/pcmcia/nsp_cs.c
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@ -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! */