Hello.
On 9/13/2014 1:26 PM, Hans de Goede wrote:
The data urbs are all killed before calling zap_pending, and their completion
handler should have cleared their inflight flag.
Do not 0 the data inflight flags, and add a check for try_complete succeeding,
as it should always succeed when called from zap_pending.
Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
drivers/usb/storage/uas.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 08edb6b..85bbc1d 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -145,6 +145,7 @@ static void uas_zap_pending(struct uas_dev_info *devinfo,
int result)
struct uas_cmd_info *cmdinfo;
struct uas_cmd_info *temp;
unsigned long flags;
+ int err;
Er, I don't see why this variable is necessary.
[...]
@@ -152,12 +153,11 @@ static void uas_zap_pending(struct uas_dev_info *devinfo,
int result)
struct scsi_cmnd *cmnd = container_of(scp, struct scsi_cmnd,
SCp);
uas_log_cmd_state(cmnd, __func__);
- /* all urbs are killed, clear inflight bits */
- cmdinfo->state &= ~(COMMAND_INFLIGHT |
- DATA_IN_URB_INFLIGHT |
- DATA_OUT_URB_INFLIGHT);
+ /* Sense urbs were killed, clear COMMAND_INFLIGHT manually */
+ cmdinfo->state &= ~COMMAND_INFLIGHT;
cmnd->result = result << 16;
- uas_try_complete(cmnd, __func__);
+ err = uas_try_complete(cmnd, __func__);
+ WARN_ON(err != 0);
Why not:
WARN_ON(uas_try_complete(cmnd, __func__));
}
spin_unlock_irqrestore(&devinfo->lock, flags);
}
WBR, Sergei
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