From: Xiaoke Wang <xkernel.wang@xxxxxxxxxxx> kzalloc() is a memory allocation function which can return NULL when some internal memory errors happen. So it is better to check it to prevent potential wrong memory access. Signed-off-by: Xiaoke Wang <xkernel.wang@xxxxxxxxxxx> --- arch/mips/sgi-ip22/ip22-gio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/mips/sgi-ip22/ip22-gio.c b/arch/mips/sgi-ip22/ip22-gio.c index dfc52f6..38d12f4 100644 --- a/arch/mips/sgi-ip22/ip22-gio.c +++ b/arch/mips/sgi-ip22/ip22-gio.c @@ -363,6 +363,8 @@ static void ip22_check_gio(int slotno, unsigned long addr, int irq) printk(KERN_INFO "GIO: slot %d : %s (id %x)\n", slotno, name, id); gio_dev = kzalloc(sizeof *gio_dev, GFP_KERNEL); + if (!gio_dev) + return; gio_dev->name = name; gio_dev->slotno = slotno; gio_dev->id.id = id; --
