On Sun, Jun 09, 2013 at 07:49:24PM +0800, Shawn Guo wrote: > The following error randomly appears on an imx6q board where gpio is > used to implement card-detection when mounting EXT4 rootfs during boot. > > mmc1: Card removed during transfer! > mmc1: Resetting controller. > mmcblk0: unknown error -123 sending read/write command, card status 0x900 > end_request: I/O error, dev mmcblk0, sector 106744 > EXT4-fs error (device mmcblk0p2): ext4_find_entry:1312: inode #5011: comm swapper/0: reading directory lblock 0 > > It turns out that the error message comes from the card removal check > in function sdhci_card_event(). While we have a well implemented > function sdhci_do_get_cd() handling all the possible cases of > CD, the current code only checks controller internal CD case. That > causes problem for other CD cases like gpio on above imx6q board. > > Improve the check by using sdhci_do_get_cd() to cover all possible CD > cases, so that above error on the imx6q board gets fixed. > > Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx> Chris, Are you fine with the patch? Shawn -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
