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OpenCloudOS-Kernel
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[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 <jj@chaosbits.net>
Acked-by: Naresh Kumar Inna <naresh@chelsio.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Jesper Juhl 2012-12-26 21:31:51 +01:00 committed by James Bottomley
parent 2b82d825a5
commit 02db3db5aa
1 changed files with 9 additions and 6 deletions
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15
drivers/scsi/csiostor/csio_hw.c
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@ -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;
}