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sdhci: handle hot-remove

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Gracefully handle when the device is suddenly removed. Do a test read
and avoid any further access if that read returns -1.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Pierre Ossman 2008-04-16 19:13:13 +02:00
commit 1e72859e3a
3 changed files with 58 additions and 14 deletions
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