With current implementation of power class selection,
mmc_select_powerclass() should never fail. So treat any error
returned by this function as serious enough to skip the card
initialization.
Signed-off-by: Subhash Jadavani <subha...@codeaurora.org>
---
drivers/mmc/core/mmc.c | 34 ++++++++++++++++++++--------------
1 files changed, 20 insertions(+), 14 deletions(-)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 54df5ad..d5ff192 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1116,10 +1116,12 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
ext_csd_bits = (bus_width == MMC_BUS_WIDTH_8) ?
EXT_CSD_BUS_WIDTH_8 : EXT_CSD_BUS_WIDTH_4;
err = mmc_select_powerclass(card, ext_csd_bits, ext_csd);
- if (err)
- pr_warning("%s: power class selection to bus width %d"
- " failed\n", mmc_hostname(card->host),
- 1 << bus_width);
+ if (err) {
+ pr_err("%s: power class selection to bus width %d"
+ " failed\n", mmc_hostname(card->host),
+ 1 << bus_width);
+ goto err;
+ }
}
/*
@@ -1150,11 +1152,13 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
ddr = 0; /* no DDR for 1-bit width */
err = mmc_select_powerclass(card, ext_csd_bits[idx][0],
ext_csd);
- if (err)
- pr_warning("%s: power class selection to "
- "bus width %d failed\n",
- mmc_hostname(card->host),
- 1 << bus_width);
+ if (err) {
+ pr_err("%s: power class selection to "
+ "bus width %d failed\n",
+ mmc_hostname(card->host),
+ 1 << bus_width);
+ goto err;
+ }
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BUS_WIDTH,
@@ -1181,11 +1185,13 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
if (!err && ddr) {
err = mmc_select_powerclass(card, ext_csd_bits[idx][1],
ext_csd);
- if (err)
- pr_warning("%s: power class selection to "
- "bus width %d ddr %d failed\n",
- mmc_hostname(card->host),
- 1 << bus_width, ddr);
+ if (err) {
+ pr_err("%s: power class selection to "
+ "bus width %d ddr %d failed\n",
+ mmc_hostname(card->host),
+ 1 << bus_width, ddr);
+ goto err;
+ }
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BUS_WIDTH,
--
1.7.1.1
--
Sent by a consultant of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
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