tree 5fc8319ce14b0770546bbbf9a72c90abaf019317
parent 4489428ab5a49a6f443d9aa17f1d891417787d7b
author Pierre Ossman <drzeus@drzeus.cx> 1208365993 +0200
committer Pierre Ossman <drzeus@drzeus.cx> 1216124080 +0200

sdhci: handle hot-remove

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>