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scsi: target: tcmu: Return from tcmu_handle_completions() if cmd_id not found

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[ Upstream commit 9814b55cde0588b6d9bc496cee43f87316cbc6f1 ]

If tcmu_handle_completions() finds an invalid cmd_id while looping over cmd
responses from userspace it sets TCMU_DEV_BIT_BROKEN and breaks the
loop. This means that it does further handling for the tcmu device.

Skip that handling by replacing 'break' with 'return'.

Additionally change tcmu_handle_completions() from unsigned int to bool,
since the value used in return already is bool.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bodo Stroesser <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Bodo Stroesser 2021-04-23 17:01:23 +02:00 • committed by Greg Kroah-Hartman
commit c5946eb52b
1 changed files with 2 additions and 2 deletions
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4
drivers/target/target_core_user.c
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@ -1205,7 +1205,7 @@ static void tcmu_set_next_deadline(struct list_head *queue,
del_timer(timer);
}
static unsigned int tcmu_handle_completions(struct tcmu_dev *udev)
static bool tcmu_handle_completions(struct tcmu_dev *udev)
{
struct tcmu_mailbox *mb;
struct tcmu_cmd *cmd;
@ -1245,7 +1245,7 @@ static unsigned int tcmu_handle_completions(struct tcmu_dev *udev)
pr_err("cmd_id %u not found, ring is broken\n",
entry->hdr.cmd_id);
set_bit(TCMU_DEV_BIT_BROKEN, &udev->flags);
break;
return false;
}
tcmu_handle_completion(cmd, entry);