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qed: Fix possible system hang in the dcbnl-getdcbx() path.

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[ Upstream commit 62289ba27558553871fd047baadaaeda886c6a63 ]

qed_dcbnl_get_dcbx() API uses kmalloc in GFT_KERNEL mode. The API gets
invoked in the interrupt context by qed_dcbnl_getdcbx callback. Need
to invoke this kmalloc in atomic mode.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
sudarsana.kalluru@cavium.com 2017-04-19 03:19:54 -07:00 committed by Greg Kroah-Hartman
parent f06316859c
commit 8f9bd136b5
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/qlogic/qed/qed_dcbx.c
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@ -1222,7 +1222,7 @@ static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
{
struct qed_dcbx_get *dcbx_info;
dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_ATOMIC);
if (!dcbx_info)
return NULL;