[dpdk-dev] [PATCH v2] common/cnxk: fix memory leak

Anoob Joseph anoobj at marvell.com
Wed Nov 10 05:32:03 CET 2021


The memory allocated for temporarily keeping DPTR need to be freed after
operation.

Also, dptr need to be aligned to 8B.

Fixes: 71213a8b773c ("common/cnxk: support CPT CTX write through microcode op")
Cc: schalla at marvell.com

Signed-off-by: Anoob Joseph <anoobj at marvell.com>
Reviewed-by: Nithin Kumar Dabilpuram <ndabilpuram at marvell.com>
Reviewed-by: Tejasree Kondoj <ktejasree at marvell.com>
---
v2:
- Fixed commit hash in "Fixes" line

 drivers/common/cnxk/roc_cpt.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/common/cnxk/roc_cpt.c b/drivers/common/cnxk/roc_cpt.c
index 5c8c328..51cd612 100644
--- a/drivers/common/cnxk/roc_cpt.c
+++ b/drivers/common/cnxk/roc_cpt.c
@@ -930,12 +930,14 @@ roc_cpt_ctx_write(struct roc_cpt_lf *lf, void *sa_dptr, void *sa_cptr,
 		plt_err("Couldn't allocate memory for result address");
 		return -ENOMEM;
 	}
-	dptr = plt_zmalloc(sa_len, 0);
-	if (!dptr) {
+
+	dptr = plt_zmalloc(sa_len, 8);
+	if (dptr == NULL) {
 		plt_err("Couldn't allocate memory for SA dptr");
 		plt_free(res);
 		return -ENOMEM;
 	}
+
 	for (i = 0; i < (sa_len / 8); i++)
 		dptr[i] = plt_cpu_to_be_64(((uint64_t *)sa_dptr)[i]);
 
@@ -962,6 +964,7 @@ roc_cpt_ctx_write(struct roc_cpt_lf *lf, void *sa_dptr, void *sa_cptr,
 		plt_delay_ms(1);
 
 	plt_free(res);
+	plt_free(dptr);
 
 	return 0;
 }
-- 
2.7.4



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