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Subject[PATCH] scsi: lpfc: add null check of kzalloc in lpfc_sli4_cgn_params_read
Date
kzalloc may fails, pdata might be null and it may cause
null pointer dereference later.

Signed-off-by: Kang Chen <void0red@gmail.com>
---
drivers/scsi/lpfc/lpfc_init.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 6eb4085a3..54134d782 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -7291,6 +7291,8 @@ lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
/* Find out if the FW has a new set of congestion parameters. */
len = sizeof(struct lpfc_cgn_param);
pdata = kzalloc(len, GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
pdata, len);

--
2.34.1
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