From: Rasesh Mody <rasesh.mody@cavium.com>
Date: Sat, 7 Oct 2017 06:31:00 +0000 (-0700)
Subject: net/qede/base: add check for DMA engine state
X-Git-Tag: spdx-start~1552
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=b21e05c9cf943d427007d026b199575d6a172acb;p=dpdk.git

net/qede/base: add check for DMA engine state

Check DMA engine state to verify it is not called before it is
initialized

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
---

diff --git a/drivers/net/qede/base/ecore_hw.c b/drivers/net/qede/base/ecore_hw.c
index d6217d8b68..bc0138f612 100644
--- a/drivers/net/qede/base/ecore_hw.c
+++ b/drivers/net/qede/base/ecore_hw.c
@@ -789,6 +789,15 @@ ecore_dmae_execute_command(struct ecore_hwfn *p_hwfn,
 		return ECORE_SUCCESS;
 	}
 
+	if (!cmd) {
+		DP_NOTICE(p_hwfn, true,
+			  "ecore_dmae_execute_sub_operation failed. Invalid state. source_addr 0x%lx, destination addr 0x%lx, size_in_dwords 0x%x\n",
+			  (unsigned long)src_addr,
+			  (unsigned long)dst_addr,
+			  length_cur);
+		return ECORE_INVAL;
+	}
+
 	ecore_dmae_opcode(p_hwfn,
 			  (src_type == ECORE_DMAE_ADDRESS_GRC),
 			  (dst_type == ECORE_DMAE_ADDRESS_GRC), p_params);