Parisc: Check kmalloc return value before use the buffer in ccio-dma.c

Commit Message

wzt wzt May 6, 2010, 2:42 a.m. UTC

None

Patch

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index f511e70..f465417 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1407,6 +1407,11 @@  static void __init ccio_init_resources(struct ioc *ioc)
 	struct resource *res = ioc->mmio_region;
 	char *name = kmalloc(14, GFP_KERNEL);
 
+	if (!name) {
+		printk(KERN_ERR "%s() failed to get enough memory\n", __func__);
+		return ;
+	}
+
 	snprintf(name, 14, "GSC Bus [%d/]", ioc->hw_path);
 
 	ccio_init_resource(res, name, &ioc->ioc_regs->io_io_low);