[PATCH linux dev-4.10 v3 08/31] drivers: fsi: sbefifo: Do an earlier get_client call

Eddie James eajames at linux.vnet.ibm.com
Fri Oct 6 06:24:01 AEDT 2017


From: "Edward A. James" <eajames at us.ibm.com>

Get client before we start using it.

Signed-off-by: Edward A. James <eajames at us.ibm.com>
---
 drivers/fsi/fsi-sbefifo.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/fsi/fsi-sbefifo.c b/drivers/fsi/fsi-sbefifo.c
index a5bdc75..5efba30 100644
--- a/drivers/fsi/fsi-sbefifo.c
+++ b/drivers/fsi/fsi-sbefifo.c
@@ -656,6 +656,7 @@ static ssize_t sbefifo_write_common(struct sbefifo_client *client,
 	if (!len)
 		return 0;
 
+	sbefifo_get_client(client);
 	n = sbefifo_buf_nbwriteable(&client->wbuf);
 
 	spin_lock_irq(&sbefifo->lock);
@@ -663,19 +664,19 @@ static ssize_t sbefifo_write_common(struct sbefifo_client *client,
 
 	if ((client->f_flags & O_NONBLOCK) && xfr && n < len) {
 		spin_unlock_irq(&sbefifo->lock);
-		return -EAGAIN;
+		ret = -EAGAIN;
+		goto out;
 	}
 
 	xfr = sbefifo_enq_xfr(client);
 	if (!xfr) {
 		spin_unlock_irq(&sbefifo->lock);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto out;
 	}
 
 	spin_unlock_irq(&sbefifo->lock);
 
-	sbefifo_get_client(client);
-
 	/*
 	 * Partial writes are not really allowed in that EOT is sent exactly
 	 * once per write.
-- 
1.8.3.1



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