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* [PATCH AUTOSEL 4.19 27/32] nvme: Fix uninitialized-variable warning
       [not found] <20200303024851.10054-1-sashal@kernel.org>
@ 2020-03-03  2:48 ` Sasha Levin
  0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2020-03-03  2:48 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Keith Busch, Sasha Levin, linux-nvme, Christoph Hellwig, Arnd Bergmann

From: Keith Busch <kbusch@kernel.org>

[ Upstream commit 15755854d53b4bbb0bb37a0fce66f0156cfc8a17 ]

gcc may detect a false positive on nvme using an unintialized variable
if setting features fails. Since this is not a fast path, explicitly
initialize this variable to suppress the warning.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index f41fd15b7b7c2..a8132e8d72bb4 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1058,8 +1058,8 @@ static struct nvme_id_ns *nvme_identify_ns(struct nvme_ctrl *ctrl,
 static int nvme_set_features(struct nvme_ctrl *dev, unsigned fid, unsigned dword11,
 		      void *buffer, size_t buflen, u32 *result)
 {
+	union nvme_result res = { 0 };
 	struct nvme_command c;
-	union nvme_result res;
 	int ret;
 
 	memset(&c, 0, sizeof(c));
-- 
2.20.1


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2020-03-03  2:48 ` [PATCH AUTOSEL 4.19 27/32] nvme: Fix uninitialized-variable warning Sasha Levin

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