From: Keith Busch <kbusch@kernel.org>
Date: Wed, 19 Feb 2020 15:59:36 +0000 (+0900)
Subject: nvme: Fix uninitialized-variable warning
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=15755854d53b4bbb0bb37a0fce66f0156cfc8a17;p=linux.git

nvme: Fix uninitialized-variable warning

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>
---

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index ada59df642d29..a4d8c90ee7cc4 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1165,8 +1165,8 @@ 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));