| Message ID | 20211229023814.53372-1-wenzhiwei@kylinos.cn |
|---|---|
| State | New |
| Headers | show |
| Series | mmc: dw_mmc: Fix potential null pointer risk | expand |
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 */
we previously assumed 'host->slot' could be null, null pointer judgment should be added Signed-off-by: Wen Zhiwei <wenzhiwei@kylinos.cn> --- drivers/mmc/host/dw_mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)