summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/scsi.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-07-18 21:13:20 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-18 21:13:20 +0200
commitf6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c (patch)
treec5643fcdc884a8d0bfc3f1bc28039cab7394e5bc /drivers/scsi/scsi.c
parentx86: use generic per-device dma coherent allocator (diff)
parentMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff)
downloadlinux-f6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c.tar.xz
linux-f6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c.zip
Merge branch 'linus' into core/generic-dma-coherent
Conflicts: kernel/Makefile Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/scsi/scsi.c')
-rw-r--r--drivers/scsi/scsi.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 110e776d1a07..36c92f961e15 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -855,9 +855,18 @@ void scsi_finish_command(struct scsi_cmnd *cmd)
good_bytes = scsi_bufflen(cmd);
if (cmd->request->cmd_type != REQ_TYPE_BLOCK_PC) {
+ int old_good_bytes = good_bytes;
drv = scsi_cmd_to_driver(cmd);
if (drv->done)
good_bytes = drv->done(cmd);
+ /*
+ * USB may not give sense identifying bad sector and
+ * simply return a residue instead, so subtract off the
+ * residue if drv->done() error processing indicates no
+ * change to the completion length.
+ */
+ if (good_bytes == old_good_bytes)
+ good_bytes -= scsi_get_resid(cmd);
}
scsi_io_completion(cmd, good_bytes);
}