4.17-stable review patch. If anyone has any objections, please let me know.
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From: Michael Chan michael.chan@broadcom.com
[ Upstream commit 78f058a4aa0f2280dc4d45d2c4a95728398ef857 ]
The current code returns -ENOMEM and does not bother to set the output parameters to 0 when no rings are available. Some callers, such as bnxt_get_channels() will display garbage ring numbers when that happens. Fix it by always setting the output parameters.
Fixes: 6e6c5a57fbe1 ("bnxt_en: Modify bnxt_get_max_rings() to support shared or non shared rings.") Signed-off-by: Michael Chan michael.chan@broadcom.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -8467,11 +8467,11 @@ int bnxt_get_max_rings(struct bnxt *bp, int rx, tx, cp;
_bnxt_get_max_rings(bp, &rx, &tx, &cp); + *max_rx = rx; + *max_tx = tx; if (!rx || !tx || !cp) return -ENOMEM;
- *max_rx = rx; - *max_tx = tx; return bnxt_trim_rings(bp, max_rx, max_tx, cp, shared); }