diff options
| author | Shawn Lin <shawn.lin@rock-chips.com> | 2016-11-02 15:25:48 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-12-05 10:31:10 +0100 |
| commit | 349583d66620a7d3eda760c82119ab7a8c253272 (patch) | |
| tree | fe5603b67820060aa39b4b3dc649f4a4347c9b3e /drivers/mmc/core/sd_ops.c | |
| parent | 8cce3ecc535daf91c6f5c895684195932a949be1 (diff) | |
mmc: core: remove BUG_ONs from sd
BUG_ONs doesn't help anything except for stop the system from
running. If it occurs, it implies we should deploy proper error
handling for that. So this patch is gonna discard these meaningless
BUG_ONs and deploy error handling if needed.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core/sd_ops.c')
| -rw-r--r-- | drivers/mmc/core/sd_ops.c | 27 |
1 files changed, 4 insertions, 23 deletions
diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c index 16b774c18e75..de125a41aa7a 100644 --- a/drivers/mmc/core/sd_ops.c +++ b/drivers/mmc/core/sd_ops.c @@ -27,8 +27,8 @@ int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card) int err; struct mmc_command cmd = {0}; - BUG_ON(!host); - BUG_ON(card && (card->host != host)); + if (WARN_ON(card && card->host != host)) + return -EINVAL; cmd.opcode = MMC_APP_CMD; @@ -72,8 +72,8 @@ int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card, int i, err; - BUG_ON(!cmd); - BUG_ON(retries < 0); + if (retries < 0) + retries = MMC_CMD_RETRIES; err = -EIO; @@ -122,9 +122,6 @@ int mmc_app_set_bus_width(struct mmc_card *card, int width) { struct mmc_command cmd = {0}; - BUG_ON(!card); - BUG_ON(!card->host); - cmd.opcode = SD_APP_SET_BUS_WIDTH; cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; @@ -147,8 +144,6 @@ int mmc_send_app_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr) struct mmc_command cmd = {0}; int i, err = 0; - BUG_ON(!host); - cmd.opcode = SD_APP_OP_COND; if (mmc_host_is_spi(host)) cmd.arg = ocr & (1 << 30); /* SPI only defines one bit */ @@ -224,9 +219,6 @@ int mmc_send_relative_addr(struct mmc_host *host, unsigned int *rca) int err; struct mmc_command cmd = {0}; - BUG_ON(!host); - BUG_ON(!rca); - cmd.opcode = SD_SEND_RELATIVE_ADDR; cmd.arg = 0; cmd.flags = MMC_RSP_R6 | MMC_CMD_BCR; @@ -249,10 +241,6 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr) struct scatterlist sg; void *data_buf; - BUG_ON(!card); - BUG_ON(!card->host); - BUG_ON(!scr); - /* NOTE: caller guarantees scr is heap-allocated */ err = mmc_app_cmd(card->host, card); @@ -307,9 +295,6 @@ int mmc_sd_switch(struct mmc_card *card, int mode, int group, struct mmc_data data = {0}; struct scatterlist sg; - BUG_ON(!card); - BUG_ON(!card->host); - /* NOTE: caller guarantees resp is heap-allocated */ mode = !!mode; @@ -352,10 +337,6 @@ int mmc_app_sd_status(struct mmc_card *card, void *ssr) struct mmc_data data = {0}; struct scatterlist sg; - BUG_ON(!card); - BUG_ON(!card->host); - BUG_ON(!ssr); - /* NOTE: caller guarantees ssr is heap-allocated */ err = mmc_app_cmd(card->host, card); |