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mmc: fix resume kpanic if no dms been allocated when init

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This commit is contained in:
lintao
2014-09-09 14:44:19 +08:00
parent 936ec4388d
commit 8ae438b680
1 changed files with 9 additions and 2 deletions
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11
drivers/mmc/host/rk_sdmmc.c
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@@ -691,6 +691,10 @@ static int dw_mci_edmac_init(struct dw_mci *host)
return 0;
err_exit:
if (NULL != host->dms) {
kfree(host->dms);
host->dms = NULL;
}
return -ENXIO;
}
@@ -699,8 +703,11 @@ static void dw_mci_edmac_exit(struct dw_mci *host)
{
dma_release_channel(host->dms->ch);
host->dms->ch = NULL;
kfree(host->dms);
host->dms = NULL;
if (NULL != host->dms) {
kfree(host->dms);
host->dms = NULL;
}
}
static const struct dw_mci_dma_ops dw_mci_edmac_ops = {