Hello Tobias,

On 09/25/2015 07:18 PM, Tobias Jakobi wrote:
exynos_mmc_init() always returns zero, so for the caller
it looks like it never fails.

Correct this by returning the error code of process_nodes().
For process_nodes() do something similar and return early
when do_sdhci_init() fails.

v2: Only fail in process_nodes() if we fail on all
     available nodes.

Signed-off-by: Tobias Jakobi <tjak...@math.uni-bielefeld.de>
---
  drivers/mmc/s5p_sdhci.c | 18 ++++++++++++------
  1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c
index e9c43a9..b461fde 100644
--- a/drivers/mmc/s5p_sdhci.c
+++ b/drivers/mmc/s5p_sdhci.c
@@ -172,6 +172,7 @@ static int process_nodes(const void *blob, int node_list[], 
int count)
  {
        struct sdhci_host *host;
        int i, node;
+       int failed = 0;

        debug("%s: count = %d\n", __func__, count);

@@ -185,11 +186,18 @@ static int process_nodes(const void *blob, int 
node_list[], int count)

                if (sdhci_get_config(blob, node, host)) {
                        printf("%s: failed to decode dev %d\n",       __func__, 
i);
-                       return -1;
+                       failed++;
+                       continue;
+               }
+
+               if (do_sdhci_init(host)) {
+                       printf("%s: failed to initialize dev %d\n", __func__, 
i);
+                       failed++;
                }
-               do_sdhci_init(host);
        }
-       return 0;
+
+       /* we only consider it an error when all nodes fail */
+       return (failed == count ? -1 : 0);
  }

  int exynos_mmc_init(const void *blob)
@@ -201,8 +209,6 @@ int exynos_mmc_init(const void *blob)
                        COMPAT_SAMSUNG_EXYNOS_MMC, node_list,
                        SDHCI_MAX_HOSTS);

-       process_nodes(blob, node_list, count);
-
-       return 0;
+       return process_nodes(blob, node_list, count);
  }
  #endif


Acked-by: Przemyslaw Marczak <p.marc...@samsung.com>

Best regards,
--
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marc...@samsung.com
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