[bug report] mmc: dw_mmc: Remove struct dw_mci_slot

[Dan Carpenter <dan.carpenter@linaro.org>]

[ Sorry, a couple more.  I should have included these in the same email ]

Hello Shawn Lin,

This is a semi-automatic email about new static checker warnings.

Commit 926311cf3361 ("mmc: dw_mmc: Remove struct dw_mci_slot") from
Dec 16, 2025, leads to the following Smatch complaint:

drivers/mmc/host/dw_mmc.c:3494 dw_mci_runtime_suspend() warn: variable dereferenced before check 'host' (see line 3489)
drivers/mmc/host/dw_mmc.c:3546 dw_mci_runtime_resume() warn: variable dereferenced before check 'host' (see line 3516)
drivers/mmc/host/dw_mmc.c:3562 dw_mci_runtime_resume() warn: variable dereferenced before check 'host' (see line 3516)

drivers/mmc/host/dw_mmc.c
  3488	
  3489		if (host->use_dma && host->dma_ops->exit)
                    ^^^^^^
The host pointer is dereferenced

  3490			host->dma_ops->exit(host);
  3491	
  3492		clk_disable_unprepare(host->ciu_clk);
  3493	
  3494		if (host &&
                    ^^^^
So this check is too late.

  3495		    (mmc_host_can_gpio_cd(host->mmc) ||
  3496		     !mmc_card_is_removable(host->mmc)))

regards,
dan carpenter