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fscache: Fix error handling in fscache_begin_operation() 

Fix fscache_begin_operation() to clear cres->cache_priv on error, otherwise
fscache_resources_valid() will report it as being valid.

Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/3933237.1710514106@warthog.procyon.org.uk
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reported-by: Marc Dionne <marc.dionne@auristor.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
David Howells 2024-03-15 14:48:26 +00:00 committed by Christian Brauner
parent 59a55a63c2
commit 449ac55146
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
1 changed files with 3 additions and 1 deletions
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4
fs/netfs/fscache_io.c
View File

@ -83,8 +83,10 @@ static int fscache_begin_operation(struct netfs_cache_resources *cres,
cres->debug_id = cookie->debug_id;
cres->inval_counter = cookie->inval_counter;
if (!fscache_begin_cookie_access(cookie, why))
if (!fscache_begin_cookie_access(cookie, why)) {
cres->cache_priv = NULL;
return -ENOBUFS;
}
again:
spin_lock(&cookie->lock);