[PATCH] mmc: dw_mmc: Pass back errors from mmc_of_parse()

From: Doug Anderson
Date: Mon Aug 25 2014 - 14:19:33 EST


It's possible that mmc_of_parse() could return errors (possibly in
some future version it might return -EPROBE_DEFER even). Let's pass
those errors back.

Signed-off-by: Doug Anderson <dianders@xxxxxxxxxxxx>
---
drivers/mmc/host/dw_mmc.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 7f227e9..9ef4df0 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2131,7 +2131,9 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
if (host->pdata->caps2)
mmc->caps2 = host->pdata->caps2;

- mmc_of_parse(mmc);
+ ret = mmc_of_parse(mmc);
+ if (ret)
+ goto err_host_allocated;

if (host->pdata->blk_settings) {
mmc->max_segs = host->pdata->blk_settings->max_segs;
@@ -2163,7 +2165,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)

ret = mmc_add_host(mmc);
if (ret)
- goto err_setup_bus;
+ goto err_host_allocated;

#if defined(CONFIG_DEBUG_FS)
dw_mci_init_debugfs(slot);
@@ -2174,9 +2176,9 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)

return 0;

-err_setup_bus:
+err_host_allocated:
mmc_free_host(mmc);
- return -EINVAL;
+ return ret;
}

static void dw_mci_cleanup_slot(struct dw_mci_slot *slot, unsigned int id)
--
2.1.0.rc2.206.gedb03e5

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