[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>
diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c
index 8ecdb94..bdd78fb 100644
--- a/drivers/scsi/csiostor/csio_hw.c
+++ b/drivers/scsi/csiostor/csio_hw.c
@@ -2131,13 +2131,16 @@
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 @@
strncpy(path, "/lib/firmware/" CSIO_CF_FNAME, 64);
}
+leave:
kfree(cfg_data);
release_firmware(cf);
-
return ret;
}