From 02db3db5aaa1154a748a7cba93e9f0098ad62f78 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Wed, 26 Dec 2012 21:31:51 +0100 Subject: [PATCH] [SCSI] csiostor: Don't leak mem or fail to release firmware in csio_hw_flash_config() If kzalloc() or csio_hw_check_fwconfig() fail we may leave the csio_hw_flash_config() function without freeing allocated memory or firmware. This should take care of the leaks. Signed-off-by: Jesper Juhl Acked-by: Naresh Kumar Inna Signed-off-by: James Bottomley --- drivers/scsi/csiostor/csio_hw.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c index 8ecdb94a59f4..bdd78fb4fc70 100644 --- a/drivers/scsi/csiostor/csio_hw.c +++ b/drivers/scsi/csiostor/csio_hw.c @@ -2131,13 +2131,16 @@ csio_hw_flash_config(struct csio_hw *hw, u32 *fw_cfg_param, char *path) value_to_add = 4 - (cf->size % 4); cfg_data = kzalloc(cf->size+value_to_add, GFP_KERNEL); - if (cfg_data == NULL) - return -ENOMEM; + if (cfg_data == NULL) { + ret = -ENOMEM; + goto leave; + } memcpy((void *)cfg_data, (const void *)cf->data, cf->size); - - if (csio_hw_check_fwconfig(hw, fw_cfg_param) != 0) - return -EINVAL; + if (csio_hw_check_fwconfig(hw, fw_cfg_param) != 0) { + ret = -EINVAL; + goto leave; + } mtype = FW_PARAMS_PARAM_Y_GET(*fw_cfg_param); maddr = FW_PARAMS_PARAM_Z_GET(*fw_cfg_param) << 16; @@ -2149,9 +2152,9 @@ csio_hw_flash_config(struct csio_hw *hw, u32 *fw_cfg_param, char *path) strncpy(path, "/lib/firmware/" CSIO_CF_FNAME, 64); } +leave: kfree(cfg_data); release_firmware(cf); - return ret; }