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From: Pavel Begunkov <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: [PATCH 3/3] io_uring: check for iowq alloc_workqueue errors
Date: Fri, 31 Jan 2025 16:24:23 +0000	[thread overview]
Message-ID: <f9d61c1f8dc391f4935fcd00bf67b14345a68c72.1738339723.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>

alloc_workqueue() can fail, check the result and return an error back
from io_uring_init() if needed.

Fixes: 73eaa2b583493 ("io_uring: use private workqueue for exit work")
Signed-off-by: Pavel Begunkov <[email protected]>
---
 io_uring/io_uring.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index b05580c1a6424..78a6cc84304f2 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -3925,6 +3925,8 @@ static int __init io_uring_init(void)
 		return -ENOMEM;
 
 	iou_wq = alloc_workqueue("iou_exit", WQ_UNBOUND, 64);
+	if (!iou_wq)
+		return -ENOMEM;
 
 #ifdef CONFIG_SYSCTL
 	register_sysctl_init("kernel", kernel_io_uring_disabled_table);
-- 
2.47.1


      parent reply	other threads:[~2025-01-31 16:24 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-31 16:24 [PATCH 0/3] check errors in early init Pavel Begunkov
2025-01-31 16:24 ` [PATCH 1/3] io_uring: propagate req cache creation errors Pavel Begunkov
2025-01-31 16:26   ` Jens Axboe
2025-01-31 16:30     ` Pavel Begunkov
2025-01-31 16:24 ` [PATCH 2/3] io_uring: propagate io_buffer " Pavel Begunkov
2025-01-31 16:24 ` Pavel Begunkov [this message]

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