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io_uring: Fix uninitialized variable up.resv

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The variable up.resv is not initialized and is being checking for a
non-zero value in the call to _io_register_rsrc_update. Fix this by
explicitly setting the variable to 0.

Addresses-Coverity: ("Uninitialized scalar variable)"
Fixes: c3bdad0271 ("io_uring: add generic rsrc update with tags")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210426094735.8320-1-colin.king@canonical.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Colin Ian King 2021-04-26 10:47:35 +01:00 committed by Jens Axboe
parent a2b4198cab
commit 615cee49b3
1 changed files with 1 additions and 0 deletions
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fs/io_uring.c
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@ -5842,6 +5842,7 @@ static int io_files_update(struct io_kiocb *req, unsigned int issue_flags)
up.data = req->rsrc_update.arg;
up.nr = 0;
up.tags = 0;
up.resv = 0;
mutex_lock(&ctx->uring_lock);
ret = __io_register_rsrc_update(ctx, IORING_RSRC_FILE,