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scsi: snic: Fix memory leak with using debugfs_lookup()

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[ Upstream commit ad0e4e2fab ]

When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time.  To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic at
once.

Link: https://lore.kernel.org/r/20230202141009.2290380-1-gregkh@linuxfoundation.org
Cc: Karan Tilak Kumar <kartilak@cisco.com>
Cc: Sesidhar Baddela <sebaddel@cisco.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Greg Kroah-Hartman 2023-02-02 15:10:09 +01:00
parent 73dbd0f325
commit 5a46d8bdaf
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/snic/snic_debugfs.c
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@ -451,6 +451,6 @@ void snic_trc_debugfs_init(void)
void
snic_trc_debugfs_term(void)
{
debugfs_remove(debugfs_lookup(TRC_FILE, snic_glob->trc_root));
debugfs_remove(debugfs_lookup(TRC_ENABLE_FILE, snic_glob->trc_root));
debugfs_lookup_and_remove(TRC_FILE, snic_glob->trc_root);
debugfs_lookup_and_remove(TRC_ENABLE_FILE, snic_glob->trc_root);
}