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From: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Greg Kroah-Hartman
	<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH v2 08/24] uas: Free data urbs on completion
Date: Sat, 13 Sep 2014 12:26:35 +0200	[thread overview]
Message-ID: <1410604011-3828-9-git-send-email-hdegoede@redhat.com> (raw)
In-Reply-To: <1410604011-3828-1-git-send-email-hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

Now that we no longer drop our lock to unlink the data urbs, we can simply
free them on completion, making their handling consistent with the other urbs.

Signed-off-by: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 drivers/usb/storage/uas.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 68853b5..70b44f0 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -288,8 +288,6 @@ static int uas_try_complete(struct scsi_cmnd *cmnd, const char *caller)
 		return -EBUSY;
 	WARN_ON_ONCE(cmdinfo->state & COMMAND_COMPLETED);
 	cmdinfo->state |= COMMAND_COMPLETED;
-	usb_free_urb(cmdinfo->data_in_urb);
-	usb_free_urb(cmdinfo->data_out_urb);
 	if (cmdinfo->state & COMMAND_ABORTED)
 		scmd_printk(KERN_INFO, cmnd, "abort completed\n");
 	list_del(&cmdinfo->list);
@@ -418,9 +416,11 @@ static void uas_data_cmplt(struct urb *urb)
 	if (cmdinfo->data_in_urb == urb) {
 		sdb = scsi_in(cmnd);
 		cmdinfo->state &= ~DATA_IN_URB_INFLIGHT;
+		cmdinfo->data_in_urb = NULL;
 	} else if (cmdinfo->data_out_urb == urb) {
 		sdb = scsi_out(cmnd);
 		cmdinfo->state &= ~DATA_OUT_URB_INFLIGHT;
+		cmdinfo->data_out_urb = NULL;
 	}
 	if (sdb == NULL) {
 		WARN_ON_ONCE(1);
@@ -450,6 +450,7 @@ static void uas_data_cmplt(struct urb *urb)
 	}
 	uas_try_complete(cmnd, __func__);
 out:
+	usb_free_urb(urb);
 	spin_unlock_irqrestore(&devinfo->lock, flags);
 }
 
-- 
2.1.0

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  parent reply	other threads:[~2014-09-13 10:26 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-13 10:26 [PATCH v2 00/24] uas: rewrite error handling for robustness + misc cleanups Hans de Goede
2014-09-13 10:26 ` [PATCH v2 01/24] uas: replace WARN_ON_ONCE() with lockdep_assert_held() Hans de Goede
     [not found] ` <1410604011-3828-1-git-send-email-hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-09-13 10:26   ` [PATCH v2 02/24] uas: Remove task-management / abort error handling code Hans de Goede
2014-09-13 10:26   ` [PATCH v2 03/24] uas: Fix resetting flag handling Hans de Goede
2014-09-13 10:26   ` [PATCH v2 04/24] uas: Add uas_get_tag() helper function Hans de Goede
2014-09-13 10:26   ` [PATCH v2 05/24] uas: Do not use scsi_host_find_tag Hans de Goede
2014-09-13 10:26   ` [PATCH v2 07/24] uas: Simplify unlink of data urbs on error Hans de Goede
2014-09-13 10:26   ` Hans de Goede [this message]
2014-09-13 10:26   ` [PATCH v2 11/24] uas: Drop inflight list Hans de Goede
2014-09-13 10:26   ` [PATCH v2 15/24] uas: pre_reset and suspend: Fix a few races Hans de Goede
2014-09-13 10:26   ` [PATCH v2 16/24] uas: Use streams on upcoming 10Gbps / 3.1 USB Hans de Goede
2014-09-13 10:26   ` [PATCH v2 19/24] uas: Drop COMMAND_COMPLETED flag Hans de Goede
2014-09-13 10:26   ` [PATCH v2 21/24] uas: Remove protype hardware usb interface info Hans de Goede
2014-09-13 10:26   ` [PATCH v2 23/24] uas: Log error codes when logging errors Hans de Goede
2014-09-13 10:26 ` [PATCH v2 06/24] uas: Check against unexpected completions Hans de Goede
2014-09-13 10:26 ` [PATCH v2 09/24] uas: Simplify reset / disconnect handling Hans de Goede
2014-09-13 10:26 ` [PATCH v2 10/24] uas: zap_pending: data urbs should have completed at this time Hans de Goede
     [not found]   ` <1410604011-3828-11-git-send-email-hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-09-13 19:31     ` Sergei Shtylyov
2014-09-14  9:26       ` Hans de Goede
2014-09-14 10:29         ` James Bottomley
2014-09-14 10:32           ` Hans de Goede
2014-09-14 10:34             ` James Bottomley
2014-10-02  8:56               ` Oliver Neukum
2014-09-13 10:26 ` [PATCH v2 12/24] uas: Remove cmnd reference from the cmd urb Hans de Goede
2014-09-13 10:26 ` [PATCH v2 13/24] uas: Drop all references to a scsi_cmnd once it has been aborted Hans de Goede
2014-09-13 10:26 ` [PATCH v2 14/24] uas: Fix memleak of non-submitted urbs Hans de Goede
2014-09-13 10:26 ` [PATCH v2 17/24] uas: Do not log urb status error on cancellation Hans de Goede
2014-09-13 10:26 ` [PATCH v2 18/24] uas: Use scsi_print_command Hans de Goede
2014-09-13 10:26 ` [PATCH v2 20/24] uas: Remove support for old sense ui as used in pre-production hardware Hans de Goede
2014-09-13 10:26 ` [PATCH v2 22/24] uas: Cleanup uas_log_cmd_state usage Hans de Goede
2014-09-13 10:26 ` [PATCH v2 24/24] uas: Add response iu handling Hans de Goede

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