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staging: lustre: lustre: obdclass: obd_mount.c: Fix NULL dereference

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OBD_ALLOC_PTR(uuid) invokes kmalloc, which may return NULL. This fix
adds a check before dereferencing such pointer.

Signed-off-by: Kumar Amit Mehta <gmate.amit@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kumar Amit Mehta 2015-01-26 17:52:22 +01:00 committed by Greg Kroah-Hartman
parent ef99fd59f1
commit 1e3e981ad5
1 changed files with 5 additions and 0 deletions
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5
drivers/staging/lustre/lustre/obdclass/obd_mount.c
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@ -376,6 +376,11 @@ int lustre_start_mgc(struct super_block *sb)
/* Random uuid for MGC allows easier reconnects */
OBD_ALLOC_PTR(uuid);
if (!uuid) {
rc = -ENOMEM;
goto out_free;
}
ll_generate_random_uuid(uuidc);
class_uuid_unparse(uuidc, uuid);