Messages in this thread Patch in this message | | | From | studentxswpy@163 ... | Subject | [PATCH] net: check the return value of ioremap() in mhz_mfc_config() | Date | Tue, 2 Aug 2022 15:28:26 +0800 |
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From: Xie Shaowen <studentxswpy@163.com>
The function ioremap() in mhz_mfc_config() can fail, so its return value should be checked.
Fixes: cdb138080b781 ("pcmcia: do not use win_req_t when calling pcmcia_request_window()") Reported-by: Hacash Robot <hacashRobot@santino.com> Signed-off-by: Xie Shaowen <studentxswpy@163.com> --- drivers/net/ethernet/smsc/smc91c92_cs.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/smsc/smc91c92_cs.c b/drivers/net/ethernet/smsc/smc91c92_cs.c index 37c822e27207..14333f5bdcdc 100644 --- a/drivers/net/ethernet/smsc/smc91c92_cs.c +++ b/drivers/net/ethernet/smsc/smc91c92_cs.c @@ -446,6 +446,8 @@ static int mhz_mfc_config(struct pcmcia_device *link) smc->base = ioremap(link->resource[2]->start, resource_size(link->resource[2])); + if (!smc->base) + return -ENOMEM; offset = (smc->manfid == MANFID_MOTOROLA) ? link->config_base : 0; i = pcmcia_map_mem_page(link, link->resource[2], offset); if ((i == 0) && -- 2.25.1
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