linux-kernel - RE: [patch] scsi/pm8001: handle allocation failures

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Date:	Wed, 18 Aug 2010 09:15:23 +0800
From:	"jack wang" <jack_wang@...sh.com>
To:	"'Dan Carpenter'" <error27@...il.com>
Cc:	<lindar_liu@...sh.com>,
	"'James E.J. Bottomley'" <James.Bottomley@...e.de>,
	"'Jiri Kosina'" <jkosina@...e.cz>,
	"'Julia Lawall'" <julia@...u.dk>, <linux-scsi@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>
Subject: RE: [patch] scsi/pm8001: handle allocation failures


[Jack] Acked-by: Jack Wang <jack_wang@...sh.com> 
	Thanks!
                                                                     

Return -ENOMEM if the allocations fail.

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c
b/drivers/scsi/pm8001/pm8001_hwi.c
index 9793aa6..d8db013 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -4194,6 +4194,8 @@ static int pm8001_chip_get_nvmd_req(struct
pm8001_hba_info *pm8001_ha,
 
 	nvmd_type = ioctl_payload->minor_function;
 	fw_control_context = kzalloc(sizeof(struct fw_control_ex),
GFP_KERNEL);
+	if (!fw_control_context)
+		return -ENOMEM;
 	fw_control_context->usrAddr = (u8
*)&ioctl_payload->func_specific[0];
 	fw_control_context->len = ioctl_payload->length;
 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
@@ -4272,6 +4274,8 @@ static int pm8001_chip_set_nvmd_req(struct
pm8001_hba_info *pm8001_ha,
 
 	nvmd_type = ioctl_payload->minor_function;
 	fw_control_context = kzalloc(sizeof(struct fw_control_ex),
GFP_KERNEL);
+	if (!fw_control_context)
+		return -ENOMEM;
 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
 	memcpy(pm8001_ha->memoryMap.region[NVMD].virt_ptr,
 		ioctl_payload->func_specific,
@@ -4381,6 +4385,8 @@ pm8001_chip_fw_flash_update_req(struct pm8001_hba_info
*pm8001_ha,
 	struct pm8001_ioctl_payload *ioctl_payload = payload;
 
 	fw_control_context = kzalloc(sizeof(struct fw_control_ex),
GFP_KERNEL);
+	if (!fw_control_context)
+		return -ENOMEM;
 	fw_control = (struct fw_control_info
*)&ioctl_payload->func_specific[0];
 	if (fw_control->len != 0) {
 		if (pm8001_mem_alloc(pm8001_ha->pdev,

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