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| author |   Wei Yongjun <weiyongjun1@huawei.com> | 2018-05-26 09:45:59 +0000 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-07 17:35:00 +0200 |
| commit | 97b715b62e5b4c6edb75d023f556fd09a46cb4e1 (patch) | |
| tree | 3187a16d1be129d085e84025db20841edcc2f814 /drivers/misc/ibmvmc.c | |
| parent | /dev/mem: Mark expected switch fall-through (diff) | |
| download | linux-dev-97b715b62e5b4c6edb75d023f556fd09a46cb4e1.tar.xz linux-dev-97b715b62e5b4c6edb75d023f556fd09a46cb4e1.zip | |
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: 0eca353e7ae7 ("misc: IBM Virtual Management Channel Driver (VMC)")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Bryant G. Ly <bryantly@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/ibmvmc.c')
| -rw-r--r-- | drivers/misc/ibmvmc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/ibmvmc.c b/drivers/misc/ibmvmc.c index fb83d1375638..8f82bb9d11e2 100644 --- a/drivers/misc/ibmvmc.c +++ b/drivers/misc/ibmvmc.c @@ -273,7 +273,7 @@ static void *alloc_dma_buffer(struct vio_dev *vdev, size_t size, dma_addr_t *dma_handle) { /* allocate memory */ - void *buffer = kzalloc(size, GFP_KERNEL); + void *buffer = kzalloc(size, GFP_ATOMIC); if (!buffer) { *dma_handle = 0; |