Commit d198f101 authored by Pierre Ossman's avatar Pierre Ossman
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mmc_block: check card state after write 



Some cards have been reported to signal that they're ready prematurely.
Checking both the busy bit and card state solves the issue.

Signed-off-by: default avatarPierre Ossman <drzeus@drzeus.cx>
parent 2ffbb837

drivers/mmc/card/block.c

+7 −1
Original line number Diff line number Diff line
@@ -321,7 +321,13 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) 
					       req->rq_disk->disk_name, err);

					goto cmd_err;

				}

			} while (!(cmd.resp[0] & R1_READY_FOR_DATA));

				/*

				 * Some cards mishandle the status bits,

				 * so make sure to check both the busy

				 * indication and the card state.

				 */

			} while (!(cmd.resp[0] & R1_READY_FOR_DATA) ||

				(R1_CURRENT_STATE(cmd.resp[0]) == 7));



#if 0

			if (cmd.resp[0] & ~0x00000900)