From b42939aa075cc45ceb16c18f3b91a36bacbe7813 Mon Sep 17 00:00:00 2001 From: Suresh Thiagarajan Date: Fri, 9 May 2014 11:31:01 +0530 Subject: [PATCH] pm80xx : Fix missing NULL pointer checks and memory leaks Checking return value for the memory allocattion and freeing it while exiting the function Signed-off-by: Viswas G Signed-off-by: Suresh Thiagarajan Reviewed-by: Tomas Henzl Acked-by: Jack Wang Signed-off-by: Christoph Hellwig --- drivers/scsi/pm8001/pm8001_ctl.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c index 28b4e8139153..fe5eee4d0a11 100644 --- a/drivers/scsi/pm8001/pm8001_ctl.c +++ b/drivers/scsi/pm8001/pm8001_ctl.c @@ -395,6 +395,8 @@ static ssize_t pm8001_ctl_bios_version_show(struct device *cdev, payload.offset = 0; payload.length = 4096; payload.func_specific = kzalloc(4096, GFP_KERNEL); + if (!payload.func_specific) + return -ENOMEM; PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); wait_for_completion(&completion); virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr; @@ -402,6 +404,7 @@ static ssize_t pm8001_ctl_bios_version_show(struct device *cdev, bios_index++) str += sprintf(str, "%c", *((u8 *)((u8 *)virt_addr+bios_index))); + kfree(payload.func_specific); return str - buf; } static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);