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hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC

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commit c6aa9d3b43 upstream.

Memory allocations in the network transmit path must use GFP_ATOMIC
so they won't sleep.

Reported-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/lkml/8a4d08f94d3e6fe8b6da68440eaa89a088ad84f9.camel@redhat.com/
Fixes: 846da38de0 ("net: netvsc: Add Isolation VM support for netvsc driver")
Cc: stable@vger.kernel.org
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1675714317-48577-1-git-send-email-mikelley@microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Kelley 2023-02-06 12:11:57 -08:00 committed by Greg Kroah-Hartman
parent d60c95efff
commit 6b2aaf302c
1 changed files with 1 additions and 1 deletions
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2
drivers/net/hyperv/netvsc.c
View file

@ -1034,7 +1034,7 @@ static int netvsc_dma_map(struct hv_device *hv_dev,
packet->dma_range = kcalloc(page_count,
sizeof(*packet->dma_range),
GFP_KERNEL);
GFP_ATOMIC);
if (!packet->dma_range)
return -ENOMEM;