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Nam Cao
e5505b3c73
commit3443ff3be6upstream. pseries_irq_domain_alloc() allocates interrupts at parent's interrupt domain. If it fails in the progress, all allocated interrupts are freed. The number of successfully allocated interrupts so far is stored "i". However, "i - 1" interrupts are freed. This is broken: - One interrupt is not be freed - If "i" is zero, "i - 1" wraps around Correct the number of freed interrupts to 'i'. Fixes:a5f3d2c17b("powerpc/pseries/pci: Add MSI domains") Signed-off-by: Nam Cao <namcao@linutronix.de> Cc: stable@vger.kernel.org Reviewed-by: Cédric Le Goater <clg@redhat.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/a980067f2b256bf716b4cd713bc1095966eed8cd.1754300646.git.namcao@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>