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Date: Tue, 10 Mar 2020 13:38:12 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Arnd Bergmann <arnd@...db.de>, Christoph Hellwig <hch@....de>, Keith Busch <kbusch@...nel.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.4 046/168] nvme: Fix uninitialized-variable warning From: Keith Busch <kbusch@...nel.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@...db.de> Reviewed-by: Christoph Hellwig <hch@....de> Signed-off-by: Keith Busch <kbusch@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.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 7dacfd102a992..b8fe42f4b3c5b 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1161,8 +1161,8 @@ static int nvme_identify_ns(struct nvme_ctrl *ctrl, static int nvme_features(struct nvme_ctrl *dev, u8 op, unsigned int fid, unsigned int 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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