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Message-Id: <20211211145038.31612-1-linmq006@gmail.com>
Date: Sat, 11 Dec 2021 14:50:38 +0000
From: Miaoqian Lin <linmq006@...il.com>
To: trix@...hat.com
Cc: hao.wu@...el.com, linmq006@...il.com, linux-fpga@...r.kernel.org,
linux-kernel@...r.kernel.org, mdf@...nel.org, yilun.xu@...el.com
Subject: [PATCH v2] fpga: stratix10-soc: fix NULL vs IS_ERR() checking
The stratix10_svc_allocate_memory function does not return NULL. It
returns ERR_PTR(-ENOMEM). Use IS_ERR check the return value.
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
---
drivers/fpga/stratix10-soc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
index 047fd7f23706..91212bab5871 100644
--- a/drivers/fpga/stratix10-soc.c
+++ b/drivers/fpga/stratix10-soc.c
@@ -213,9 +213,9 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
/* Allocate buffers from the service layer's pool. */
for (i = 0; i < NUM_SVC_BUFS; i++) {
kbuf = stratix10_svc_allocate_memory(priv->chan, SVC_BUF_SIZE);
- if (!kbuf) {
+ if (IS_ERR(kbuf)) {
s10_free_buffers(mgr);
- ret = -ENOMEM;
+ ret = PTR_ERR(kbuf);
goto init_done;
}
--
2.17.1
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