diff options
| author |   Xiaoke Wang <xkernel.wang@foxmail.com> | 2022-03-25 18:57:18 +0800 |
|---|---|---|
| committer |   Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2022-03-30 20:25:11 +0200 |
| commit | f93e2a100ee73a4b84d96d7d1881baaac36e586e (patch) | |
| tree | d62b7f7a926eddeba411642879e554cf99f7e2ea /arch/mips | |
| parent | MIPS: Fix build error for loongson64 and sgi-ip27 (diff) | |
| download | linux-dev-f93e2a100ee73a4b84d96d7d1881baaac36e586e.tar.xz linux-dev-f93e2a100ee73a4b84d96d7d1881baaac36e586e.zip | |
mips: sgi-ip22: add a check for the return of kzalloc()
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@foxmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/sgi-ip22/ip22-gio.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/sgi-ip22/ip22-gio.c b/arch/mips/sgi-ip22/ip22-gio.c index dfc52f661ad0..38d12f417e48 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; |