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afs: Fix the setting of the server responding flag

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In afs_wait_for_operation(), we set transcribe the call responded flag to
the server record that we used after doing the fileserver iteration loop -
but it's possible to exit the loop having had a response from the server
that we've discarded (e.g. it returned an abort or we started receiving
data, but the call didn't complete).

This means that op->server might be NULL, but we don't check that before
attempting to set the server flag.

Fixes: 98f9fda205 ("afs: Fold the afs_addr_cursor struct in")
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20240923150756.902363-7-dhowells@redhat.com
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
David Howells 2024-09-23 16:07:50 +01:00 committed by Christian Brauner
parent 19dcfb9c16
commit ff98751bae
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1 changed files with 1 additions and 1 deletions
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2
fs/afs/fs_operation.c
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@ -201,7 +201,7 @@ void afs_wait_for_operation(struct afs_operation *op)
}
}
if (op->call_responded)
if (op->call_responded && op->server)
set_bit(AFS_SERVER_FL_RESPONDING, &op->server->flags);
if (!afs_op_error(op)) {