* [RESEND2 PATCH] libiscsi: avoid unnecessary multiple NULL assignments
@ 2012-12-17 8:08 Masatake YAMATO
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From: Masatake YAMATO @ 2012-12-17 8:08 UTC (permalink / raw)
To: linux-scsi; +Cc: Mike Christie, linux-kernel
In iscsi_free_task, NULL is assigned to task->sc twice: before and
after kfifo_in invocatoin. Allocating and freeing iscsi_task are guarded
with session->lock, so multiple NULL assignments cause no trouble. But
people reading the source code may be confused.
The second NULL assignment comes from commit:
3e5c28ad0391389959ccae81c938c7533efb3490
It seems that the line after kfifo_in invocation was introduced
accidentally.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
---
drivers/scsi/libiscsi.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 82c3fd4..7aacf3a 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -507,7 +507,6 @@ static void iscsi_free_task(struct iscsi_task *task)
kfifo_in(&session->cmdpool.queue, (void*)&task, sizeof(void*));
if (sc) {
- task->sc = NULL;
/* SCSI eh reuses commands to verify us */
sc->SCp.ptr = NULL;
/*
--
1.7.11.7
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2012-12-17 8:08 [RESEND2 PATCH] libiscsi: avoid unnecessary multiple NULL assignments Masatake YAMATO
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