Nexus 7 2013 - mmc error - kernel log snippet

<4>[ 1013.901245] WARNING: at drivers/mmc/host/msm_sdcc.c:3510 msmsdcc_enable+0x108/0x144()
<4>[ 1013.901306] mmc0: msmsdcc_enable: failed with error -22
<4>[ 1013.901397] [<c010cbc8>] (unwind_backtrace+0x0/0x11c) from [<c01730e8>] (warn_slowpath_common+0x48/0x60)
<4>[ 1013.901519] [<c01730e8>] (warn_slowpath_common+0x48/0x60) from [<c0173158>] (warn_slowpath_fmt+0x2c/0x3c)
<4>[ 1013.901580] [<c0173158>] (warn_slowpath_fmt+0x2c/0x3c) from [<c065db64>] (msmsdcc_enable+0x108/0x144)
<4>[ 1013.901702] [<c065db64>] (msmsdcc_enable+0x108/0x144) from [<c0646018>] (__mmc_claim_host+0x170/0x180)
<4>[ 1013.901824] [<c0646018>] (__mmc_claim_host+0x170/0x180) from [<c0656d54>] (mmc_blk_issue_rq+0x34/0x4c0)
<4>[ 1013.901916] [<c0656d54>] (mmc_blk_issue_rq+0x34/0x4c0) from [<c0657648>] (mmc_queue_thread+0xd4/0x19c)
<4>[ 1013.902038] [<c0657648>] (mmc_queue_thread+0xd4/0x19c) from [<c018f804>] (kthread+0x84/0x90)
<4>[ 1013.902130] [<c018f804>] (kthread+0x84/0x90) from [<c0107228>] (kernel_thread_exit+0x0/0x8)
<4>[ 1013.902221] ---[ end trace c0d52a61d7a24c7d ]---
<6>[ 1013.902343] mmc0: PM: sdcc_suspended=0, pending_resume=0, sdcc_suspending=0
<6>[ 1013.902404] mmc0: RPM: runtime_status=0, usage_count=1, is_suspended=0, disable_depth=0, runtime_error=-110, request_pending=0, request=0
<6>[ 1013.903350] sps:BAM 0x12402000 enabled: ver:0x5, number of pipes:6
<3>[ 1013.908935] mmcblk0: error -110 sending status command, retrying
<3>[ 1013.914428] mmcblk0: error -110 sending status command, retrying
<3>[ 1013.919891] mmcblk0: error -110 sending status command, aborting
<3>[ 1013.919982] end_request: I/O error, dev mmcblk0, sector 4718594
<3>[ 1013.920104] EXT4-fs (mmcblk0p30): unable to read superblock

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<3>[  703.888671] EXT4-fs (mmcblk0p30): unable to read superblock
<3>[    7.323852] mmcblk0: error -110 sending stop command, original cmd response 0x940, card status 0x2400e40
umount: can't umount /dev/block/mmcblk0: Invalid argument
 mmc0: msmsdcc_enable: failed with error -22
<3>[  757.383453] end_request: I/O error, dev mmcblk0, sector 4718592