From: Hemant Agrawal <hemant.agrawal@nxp.com>
To: dev@dpdk.org
Cc: ferruh.yigit@intel.com, stable@dpdk.org,
Apeksha Gupta <apeksha.gupta@nxp.com>
Subject: [dpdk-stable] [PATCH v2 02/16] bus/fslmc: fix dereferencing null pointer
Date: Fri, 6 Mar 2020 15:27:28 +0530 [thread overview]
Message-ID: <20200306095742.18080-3-hemant.agrawal@nxp.com> (raw)
In-Reply-To: <20200306095742.18080-1-hemant.agrawal@nxp.com>
From: Apeksha Gupta <apeksha.gupta@nxp.com>
This patch fixees the nxp internal coverity reported
null pointer dereferncing issue.
Fixes: 6fef517e17cf ("bus/fslmc: add qman HW fq query count API")
Cc: stable@dpdk.org
Signed-off-by: Apeksha Gupta <apeksha.gupta@nxp.com>
---
drivers/bus/fslmc/qbman/qbman_debug.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/bus/fslmc/qbman/qbman_debug.c b/drivers/bus/fslmc/qbman/qbman_debug.c
index 0bb2ce880..34374ae4b 100644
--- a/drivers/bus/fslmc/qbman/qbman_debug.c
+++ b/drivers/bus/fslmc/qbman/qbman_debug.c
@@ -20,26 +20,27 @@ struct qbman_fq_query_desc {
uint8_t verb;
uint8_t reserved[3];
uint32_t fqid;
- uint8_t reserved2[57];
+ uint8_t reserved2[56];
};
int qbman_fq_query_state(struct qbman_swp *s, uint32_t fqid,
struct qbman_fq_query_np_rslt *r)
{
struct qbman_fq_query_desc *p;
+ struct qbman_fq_query_np_rslt *var;
p = (struct qbman_fq_query_desc *)qbman_swp_mc_start(s);
if (!p)
return -EBUSY;
p->fqid = fqid;
- *r = *(struct qbman_fq_query_np_rslt *)qbman_swp_mc_complete(s, p,
- QBMAN_FQ_QUERY_NP);
- if (!r) {
+ var = qbman_swp_mc_complete(s, p, QBMAN_FQ_QUERY_NP);
+ if (!var) {
pr_err("qbman: Query FQID %d NP fields failed, no response\n",
fqid);
return -EIO;
}
+ *r = *var;
/* Decode the outcome */
QBMAN_BUG_ON((r->verb & QBMAN_RESPONSE_VERB_MASK) != QBMAN_FQ_QUERY_NP);
--
2.17.1
next prev parent reply other threads:[~2020-03-06 9:59 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200302145829.27808-1-hemant.agrawal@nxp.com>
2020-03-02 14:58 ` [dpdk-stable] [PATCH 01/16] net/dpaa2: fix 10g port negotiation issue Hemant Agrawal
2020-03-02 14:58 ` [dpdk-stable] [PATCH 02/16] bus/fslmc: fix dereferencing null pointer Hemant Agrawal
[not found] ` <20200306095742.18080-1-hemant.agrawal@nxp.com>
2020-03-06 9:57 ` [dpdk-stable] [PATCH v2 01/16] net/dpaa2: fix 10g port negotiation issue Hemant Agrawal
2020-03-06 9:57 ` Hemant Agrawal [this message]
[not found] ` <20200504124118.22877-1-hemant.agrawal@nxp.com>
2020-05-04 12:41 ` [dpdk-stable] [PATCH v3 1/8] bus/fslmc: fix dereferencing null pointer Hemant Agrawal
2020-05-06 21:08 ` Ferruh Yigit
2020-05-06 21:09 ` Ferruh Yigit
2020-05-06 21:14 ` Ferruh Yigit
2020-05-04 12:41 ` [dpdk-stable] [PATCH v3 2/8] net/dpaa2: fix 10g port negotiation issue Hemant Agrawal
[not found] ` <20200507104645.31990-1-hemant.agrawal@nxp.com>
2020-05-07 10:46 ` [dpdk-stable] [PATCH v4 1/9] bus/fslmc: fix dereferencing null pointer Hemant Agrawal
2020-05-07 10:46 ` [dpdk-stable] [PATCH v4 2/9] net/dpaa2: fix 10g port negotiation issue Hemant Agrawal
2020-05-07 14:36 ` Ferruh Yigit
2020-05-07 10:46 ` [dpdk-stable] [PATCH v4 8/9] net/dpaa2: fix cong group id for multiple tcs Hemant Agrawal
2020-05-07 14:33 ` Ferruh Yigit
2020-05-07 10:46 ` [dpdk-stable] [PATCH v4 9/9] bus/fslmc: fix the size of qman fq desc Hemant Agrawal
[not found] ` <20200508125934.14255-1-hemant.agrawal@nxp.com>
2020-05-08 12:59 ` [dpdk-stable] [PATCH v5 1/9] net/dpaa2: fix 10G port negotiation issue Hemant Agrawal
2020-05-08 12:59 ` [dpdk-stable] [PATCH v5 7/9] net/dpaa2: fix cong group id for multiple tcs Hemant Agrawal
2020-05-08 12:59 ` [dpdk-stable] [PATCH v5 8/9] bus/fslmc: fix the size of qman fq desc Hemant Agrawal
[not found] ` <20200508130211.14334-1-hemant.agrawal@nxp.com>
2020-05-08 13:02 ` [dpdk-stable] [PATCH v6 01/10] bus/fslmc: fix dereferencing null pointer Hemant Agrawal
2020-05-08 13:02 ` [dpdk-stable] [PATCH v6 02/10] net/dpaa2: fix 10G port negotiation issue Hemant Agrawal
2020-05-08 13:02 ` [dpdk-stable] [PATCH v6 08/10] net/dpaa2: fix cong group id for multiple tcs Hemant Agrawal
2020-05-08 13:02 ` [dpdk-stable] [PATCH v6 09/10] bus/fslmc: fix the size of qman fq desc Hemant Agrawal
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