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authorTobias Jakobi2015-10-05 13:47:51 +0200
committerMinkyu Kang2015-10-13 20:22:28 +0900
commit6a9fbb6e20eda538eb1cb394000d95c7577555ad (patch)
treeb688a37ed2f841c8ce0cc715f4af70820fa0eab3 /drivers/mmc
parent1a9d1731f93ad170f0c19b93407630b0fb966fd0 (diff)
exynos: Fix passing of errors in exynos_mmc_init()
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. Acked-by: Przemyslaw Marczak <p.marczak@samsung.com> Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/s5p_sdhci.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c
index 911e7a83077..bd9e0147487 100644
--- a/drivers/mmc/s5p_sdhci.c
+++ b/drivers/mmc/s5p_sdhci.c
@@ -171,6 +171,7 @@ 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);
@@ -184,11 +185,18 @@ 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)
@@ -200,8 +208,6 @@ 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