If gio_device_register fails, gio_dev_put() is required to drop the gio_dev device reference.

Fixes: e84de0c61905 ("MIPS: GIO bus support for SGI IP22/28") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li haoxiang_li2024@163.com --- arch/mips/sgi-ip22/ip22-gio.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/mips/sgi-ip22/ip22-gio.c b/arch/mips/sgi-ip22/ip22-gio.c index 5893ea4e382c..19b70928d6dc 100644 --- a/arch/mips/sgi-ip22/ip22-gio.c +++ b/arch/mips/sgi-ip22/ip22-gio.c @@ -372,7 +372,8 @@ static void ip22_check_gio(int slotno, unsigned long addr, int irq) gio_dev->resource.flags = IORESOURCE_MEM; gio_dev->irq = irq; dev_set_name(&gio_dev->dev, "%d", slotno); - gio_device_register(gio_dev); + if (gio_device_register(gio_dev)) + gio_dev_put(gio_dev); } else printk(KERN_INFO "GIO: slot %d : Empty\n", slotno); }