[PATCH] ohci1394.c - Correct kmalloc usage in interrupt

alloc_dma_rcv_ctx is called in interrupt and Kernel Spinlock debugging code
cribs about it via "Debug: sleeping function called in interrupt context". 
See sample stack traces below.

The patch below corrects ohci1394.c to use GFP_ATOMIC instead of
GFP_KERNEL.  Tested to work fine with 2 different Camcorder devices for
fairly long periods and connect/disconnects.
Signed-off-by: Parag Warudkar <kernel-stuff@comcast.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/ieee1394/ohci1394.c

@@ -2933,8 +2933,8 @@ alloc_dma_rcv_ctx(struct ti_ohci *ohci, struct dma_rcv_ctx *d,
 	d->ctrlClear = 0;
 	d->cmdPtr = 0;
 
-	d->buf_cpu = kmalloc(d->num_desc * sizeof(quadlet_t*), GFP_KERNEL);
-	d->buf_bus = kmalloc(d->num_desc * sizeof(dma_addr_t), GFP_KERNEL);
+	d->buf_cpu = kmalloc(d->num_desc * sizeof(quadlet_t*), GFP_ATOMIC);
+	d->buf_bus = kmalloc(d->num_desc * sizeof(dma_addr_t), GFP_ATOMIC);
 
 	if (d->buf_cpu == NULL || d->buf_bus == NULL) {
 		PRINT(KERN_ERR, "Failed to allocate dma buffer");
@@ -2945,8 +2945,8 @@ alloc_dma_rcv_ctx(struct ti_ohci *ohci, struct dma_rcv_ctx *d,
 	memset(d->buf_bus, 0, d->num_desc * sizeof(dma_addr_t));
 
 	d->prg_cpu = kmalloc(d->num_desc * sizeof(struct dma_cmd*),
-			     GFP_KERNEL);
-	d->prg_bus = kmalloc(d->num_desc * sizeof(dma_addr_t), GFP_KERNEL);
+				GFP_ATOMIC);
+	d->prg_bus = kmalloc(d->num_desc * sizeof(dma_addr_t), GFP_ATOMIC);
 
 	if (d->prg_cpu == NULL || d->prg_bus == NULL) {
 		PRINT(KERN_ERR, "Failed to allocate dma prg");
@@ -2956,7 +2956,7 @@ alloc_dma_rcv_ctx(struct ti_ohci *ohci, struct dma_rcv_ctx *d,
 	memset(d->prg_cpu, 0, d->num_desc * sizeof(struct dma_cmd*));
 	memset(d->prg_bus, 0, d->num_desc * sizeof(dma_addr_t));
 
-	d->spb = kmalloc(d->split_buf_size, GFP_KERNEL);
+	d->spb = kmalloc(d->split_buf_size, GFP_ATOMIC);
 
 	if (d->spb == NULL) {
 		PRINT(KERN_ERR, "Failed to allocate split buffer");