bnxt_en: Always set output parameters in bnxt_get_max_rings().

[ 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>

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 0340b2f4df4156e078a8d7d1773b950b10051b39..4be44396e4490de5b9a8b6df7b306a0b87a94bdd 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -7866,11 +7866,11 @@ int bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, bool shared)
        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);
 }