mmc: remove custom error codes
Convert the MMC layer to use standard error codes and not its own,
incompatible values.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 63a80ea..a2b7951 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -54,12 +54,19 @@
unsigned int retries; /* max number of retries */
unsigned int error; /* command error */
-#define MMC_ERR_NONE 0
-#define MMC_ERR_TIMEOUT 1
-#define MMC_ERR_BADCRC 2
-#define MMC_ERR_FIFO 3
-#define MMC_ERR_FAILED 4
-#define MMC_ERR_INVALID 5
+/*
+ * Standard errno values are used for errors, but some have specific
+ * meaning in the MMC layer:
+ *
+ * ETIMEDOUT Card took too long to respond
+ * EILSEQ Basic format problem with the received or sent data
+ * (e.g. CRC check failed, incorrect opcode in response
+ * or bad end bit)
+ * EINVAL Request cannot be performed because of restrictions
+ * in hardware and/or the driver
+ * ENOMEDIUM Host can determine that the slot is empty and is
+ * actively failing requests
+ */
struct mmc_data *data; /* data segment associated with cmd */
struct mmc_request *mrq; /* associated request */