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From: Wang Li <wangli74@huawei.com>
To: <ohad@wizery.com>, <bjorn.andersson@linaro.org>,
	<mathieu.poirier@linaro.org>, <s-anna@ti.com>
Cc: <linux-remoteproc@vger.kernel.org>, <wangli74@huawei.com>
Subject: [PATCH] remoteproc: k3-dsp: Fix return value check in devm_ioremap_uc()
Date: Fri, 13 Nov 2020 15:08:40 +0800	[thread overview]
Message-ID: <20201113070840.386033-1-wangli74@huawei.com> (raw)

In case of error, the function devm_ioremap_wc() returns NULL pointer not
ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.

Fixes: 6edbe024ba17 ("remoteproc: k3-dsp: Add a remoteproc driver of K3 C66x DSPs")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Li <wangli74@huawei.com>
---
 drivers/remoteproc/ti_k3_dsp_remoteproc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/remoteproc/ti_k3_dsp_remoteproc.c b/drivers/remoteproc/ti_k3_dsp_remoteproc.c
index 9011e477290c..863c0214e0a8 100644
--- a/drivers/remoteproc/ti_k3_dsp_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_dsp_remoteproc.c
@@ -445,10 +445,10 @@ static int k3_dsp_rproc_of_get_memories(struct platform_device *pdev,
 
 		kproc->mem[i].cpu_addr = devm_ioremap_wc(dev, res->start,
 							 resource_size(res));
-		if (IS_ERR(kproc->mem[i].cpu_addr)) {
+		if (!kproc->mem[i].cpu_addr) {
 			dev_err(dev, "failed to map %s memory\n",
 				data->mems[i].name);
-			return PTR_ERR(kproc->mem[i].cpu_addr);
+			return -ENOMEM;
 		}
 		kproc->mem[i].bus_addr = res->start;
 		kproc->mem[i].dev_addr = data->mems[i].dev_addr;
-- 
2.25.4


             reply	other threads:[~2020-11-13  7:05 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-13  7:08 Wang Li [this message]
2020-11-16 17:06 ` [PATCH] remoteproc: k3-dsp: Fix return value check in devm_ioremap_uc() Suman Anna
2020-11-18 14:30 ` patchwork-bot+linux-remoteproc

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