The patch adds the enhancement to mmc_ioc_cmd structure to also fill the error message so that user is aware of the error that has occured while sending a command.
Signed-off-by: Shashidhar Hiremath <[email protected]> --- drivers/mmc/card/block.c | 4 ++++ include/linux/mmc/ioctl.h | 3 +++ 2 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 0c959c9..12523bb 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -448,6 +448,10 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev, if (cmd.error) { dev_err(mmc_dev(card->host), "%s: cmd error %d\n", __func__, cmd.error); + if (copy_to_user(&(ic_ptr->error) + , &cmd.error, sizeof(cmd.error))) + err = -EFAULT; + err = cmd.error; goto cmd_rel_host; } diff --git a/include/linux/mmc/ioctl.h b/include/linux/mmc/ioctl.h index 8fa5bc5..3514ddc 100644 --- a/include/linux/mmc/ioctl.h +++ b/include/linux/mmc/ioctl.h @@ -39,6 +39,9 @@ struct mmc_ioc_cmd { /* DAT buffer */ __u64 data_ptr; + /* The error status for the Command sent */ + unsigned int error; + }; #define mmc_ioc_cmd_set_data(ic, ptr) ic.data_ptr = (__u64)(unsigned long) ptr -- 1.7.6.4 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
