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From:   trix@redhat.com
To:     kvalo@kernel.org, davem@davemloft.net, kuba@kernel.org,
        nathan@kernel.org, ndesaulniers@google.com, akolli@codeaurora.org
Cc:     ath11k@lists.infradead.org, linux-wireless@vger.kernel.org,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        llvm@lists.linux.dev, Tom Rix <trix@redhat.com>
Subject: [PATCH] ath11k: fix error handling in ath11k_qmi_assign_target_mem_chunk()
Date:   Sun, 16 Jan 2022 06:42:06 -0800
Message-Id: <20220116144206.399385-1-trix@redhat.com>
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From: Tom Rix <trix@redhat.com>

Clang static analysis reports this problem
qmi.c:1935:5: warning: Undefined or garbage value returned to caller
  return ret;
  ^~~~~~~~~~

ret is uninitialized.  When of_parse_phandle() fails, garbage is
returned.  So return -EINVAL.

Fixes: 6ac04bdc5edb ("ath11k: Use reserved host DDR addresses from DT for PCI devices")
Signed-off-by: Tom Rix <trix@redhat.com>
---
 drivers/net/wireless/ath/ath11k/qmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c
index 65d3c6ba35ae6..81b2304b1fdeb 100644
--- a/drivers/net/wireless/ath/ath11k/qmi.c
+++ b/drivers/net/wireless/ath/ath11k/qmi.c
@@ -1932,7 +1932,7 @@ static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab)
 			if (!hremote_node) {
 				ath11k_dbg(ab, ATH11K_DBG_QMI,
 					   "qmi fail to get hremote_node\n");
-				return ret;
+				return -EINVAL;
 			}
 
 			ret = of_address_to_resource(hremote_node, 0, &res);
-- 
2.26.3