On 12/29/21 11:38 AM, Wen Zhiwei wrote: > we previously assumed 'host->slot' could be null, > null pointer judgment should be added > > Signed-off-by: Wen Zhiwei <wenzhiwei@xxxxxxxxxx> Reviewed-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx> Beset Regards, Jaehoon Chung > --- > drivers/mmc/host/dw_mmc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c > index d977f34f6b55..c9dc8c168efb 100644 > --- a/drivers/mmc/host/dw_mmc.c > +++ b/drivers/mmc/host/dw_mmc.c > @@ -3518,7 +3518,7 @@ int dw_mci_runtime_resume(struct device *dev) > mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); > > > - if (host->slot->mmc->pm_flags & MMC_PM_KEEP_POWER) > + if (host->slot && host->slot->mmc->pm_flags & MMC_PM_KEEP_POWER) > dw_mci_set_ios(host->slot->mmc, &host->slot->mmc->ios); > > /* Force setup bus to guarantee available clock output */ >
