sdhci: handle hot-remove
authorPierre Ossman <drzeus@drzeus.cx>
Wed, 16 Apr 2008 17:13:13 +0000 (19:13 +0200)
committerPierre Ossman <drzeus@drzeus.cx>
Tue, 15 Jul 2008 12:14:40 +0000 (14:14 +0200)
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>

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