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7456caae37
When a request is made, the card presence is checked and the request is queued. These two parts must be atomic with respect to card removal, or a card removal could be handled in between, and the new request wouldn't get cancelled until another card was inserted. Therefore move the spinlock protection from dw_mci_queue_request() up into dw_mci_request() to cover the presence check. Note that the test_bit() used for the presence check isn't atomic itself, so should have been protected by a spinlock anyway. Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org> |
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