mmc: return meaningful error codes from mmc_select_hwpart
Rather than just returning -1 everywhere, try to return something meaningful from mmc_select_hwpart(). Note that most other MMC functions don't do this, including functions called from mmc_select_hwpart(), so I'm not sure how effective this will be. Still, it's one less place with hard-coded -1. Suggested-by: Pantelis Antoniou <panto@antoniou-consulting.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
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@ -10,6 +10,7 @@
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#include <config.h>
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#include <common.h>
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#include <command.h>
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#include <errno.h>
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#include <mmc.h>
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#include <part.h>
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#include <malloc.h>
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@ -564,19 +565,19 @@ int mmc_select_hwpart(int dev_num, int hwpart)
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int ret;
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if (!mmc)
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return -1;
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return -ENODEV;
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if (mmc->part_num == hwpart)
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return 0;
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if (mmc->part_config == MMCPART_NOAVAILABLE) {
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printf("Card doesn't support part_switch\n");
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return -1;
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return -EMEDIUMTYPE;
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}
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ret = mmc_switch_part(dev_num, hwpart);
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if (ret)
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return -1;
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return ret;
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mmc->part_num = hwpart;
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