Messages in this thread | | | Date | Wed, 9 Mar 2016 14:55:17 +0700 | Subject | Re: [RESENT PATCH] mmc: block: fix ABI regression of mmc_blk_ioctl | From | John Stultz <> |
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On Mon, Mar 7, 2016 at 1:59 PM, Shawn Lin <shawn.lin@rock-chips.com> wrote: > We should return -EINVAL if cmd is not MMC_IOC_CMD or MMC_IOC_MULTI_CMD, > otherwise blkdev_roset will return -EPERM. > > Android-adb calls make_block_device_writable with ioctl(BLKROSET), which > will return error, make remount failed: > remount of /system failed; > couldn't make block device writable: Operation not permitted > > openat(AT_FDCWD, "/dev/block/platform/ff420000.dwmmc/by-name/system", O_RDONLY) = 3 > ioctl(3, BLKROSET, 0) = -1 EPERM (Operation not permitted) > > Fixes: a5f5774c55a2 ("mmc: block: Add new ioctl to send multi commands") > Cc: stable@vger.kernel.org > Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Ulf, We're hitting this as well, and Shawn's patch seems to fix it for me.
Tested-by: John Stultz <john.stultz@linaro.org>
Thanks Shawn! -john
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