mount: handle OOM on mnt_warn_timestamp_expiry

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If no page could be allocated, an error pointer was used as format
string in pr_warn.

Rearrange the code to return early in case of OOM. Also add a check
for the return value of d_path.

Fixes: f8b92ba67c ("mount: Add mount warning for impending timestamp expiry")
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Link: https://lore.kernel.org/r/20240730085856.32385-1-olaf@aepfle.de
[brauner: rewrite commit and commit message]
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Olaf Hering 2024-07-30 10:58:13 +02:00 • committed by Christian Brauner

parent de7007f27d

commit 4bcda1eaf1

1 changed files with 11 additions and 3 deletions

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fs/namespace.c

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