vfio/pci: fix potential memory leak in vfio_intx_enable()

mainline inclusion
from mainline-v6.10-rc1
commit 82b951e6fbd31d85ae7f4feb5f00ddd4c5d256e2
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D2E
CVE: CVE-2024-38632

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=82b951e6fbd31d85ae7f4feb5f00ddd4c5d256e2



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If vfio_irq_ctx_alloc() failed will lead to 'name' memory leak.

Fixes: 18c198c96a81 ("vfio/pci: Create persistent INTx handler")
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/r/20240415015029.3699844-1-yebin10@huawei.com


Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Conflicts:
	drivers/vfio/pci/vfio_pci_intrs.c
[Huangxiaojia adapt the context.]
Signed-off-by: Huang Xiaojia <huangxiaojia2@huawei.com>