tree 26d5a6716ff3c164613811a78e5a06c353d28fe3
parent 77853bf2b48e34449e826a9ef4df5ea0dbe947f4
author Tejun Heo <htejun@gmail.com> 1137989376 +0900
committer Jeff Garzik <jgarzik@pobox.com> 1138332830 -0500

[PATCH] libata: fix ata_qc_issue() error handling

When ata_qc_issue() fails, the qc might have been dma mapped or not.
So, performing only ata_qc_free() results in dma map leak.  This patch
makes ata_qc_issue() mark dma map flags correctly on failure and calls
ata_qc_complete() after ata_qc_issue() fails.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>