Commit 97b715b6 authored by Wei Yongjun's avatar Wei Yongjun Committed by Greg Kroah-Hartman

misc: ibmvmc: Use GFP_ATOMIC under spin lock

The function alloc_dma_buffer() is called from ibmvmc_add_buffer(),
in which a spin lock be held here, so we should use GFP_ATOMIC when
a lock is held.

Fixes: 0eca353e ("misc: IBM Virtual Management Channel Driver (VMC)")
Signed-off-by: default avatarWei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: default avatarBryant G. Ly <bryantly@linux.vnet.ibm.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5faecb01
...@@ -273,7 +273,7 @@ static void *alloc_dma_buffer(struct vio_dev *vdev, size_t size, ...@@ -273,7 +273,7 @@ static void *alloc_dma_buffer(struct vio_dev *vdev, size_t size,
dma_addr_t *dma_handle) dma_addr_t *dma_handle)
{ {
/* allocate memory */ /* allocate memory */
void *buffer = kzalloc(size, GFP_KERNEL); void *buffer = kzalloc(size, GFP_ATOMIC);
if (!buffer) { if (!buffer) {
*dma_handle = 0; *dma_handle = 0;
......
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