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Subject[PATCH] ublk_drv: initialize ret variable
Date
clang build fails with
drivers/block/ublk_drv.c:1304:6: error: variable 'ret' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]

When the call to ublk_get_device_from_id() fails, ret is used without being
initized. So initialize.

Fixes: 71f28f3136af ("ublk_drv: add io_uring based userspace block driver")
Signed-off-by: Tom Rix <trix@redhat.com>
---
drivers/block/ublk_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index 52fd0af8a4f2..4d1199c98026 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -1298,7 +1298,7 @@ static int ublk_ctrl_get_queue_affinity(struct io_uring_cmd *cmd)
struct ublk_device *ub;
unsigned long queue;
unsigned int retlen;
- int ret;
+ int ret = -ENODEV;

ub = ublk_get_device_from_id(header->dev_id);
if (!ub)
--
2.27.0
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