AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-03 13:56:43 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

cxlflash: Correct usage of scsi_host_put()

Browse Source 
Currently, scsi_host_put() is being called prematurely in the
remove path and is missing entirely in an error cleanup path.
The former can lead to memory being freed too early with
subsequent access potentially corrupting data whilst the former
would result in a memory leak.

Move the usage on remove to be the last cleanup action taken
and introduce a call to scsi_host_put() in the one initialization
error path that does not use remove to cleanup.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Matthew R. Ochs 2015-10-21 15:14:09 -05:00 committed by James Bottomley
parent e5ce067b7b
commit 8b5b1e871a
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/scsi/cxlflash/main.c
View File

@ -733,7 +733,6 @@ static void cxlflash_remove(struct pci_dev *pdev)
case INIT_STATE_SCSI:
cxlflash_term_local_luns(cfg);
scsi_remove_host(cfg->host);
scsi_host_put(cfg->host);
/* Fall through */
case INIT_STATE_AFU:
term_afu(cfg);
@ -743,6 +742,7 @@ static void cxlflash_remove(struct pci_dev *pdev)
case INIT_STATE_NONE:
flush_work(&cfg->work_q);
free_mem(cfg);
scsi_host_put(cfg->host);
break;
}
@ -2404,6 +2404,7 @@ static int cxlflash_probe(struct pci_dev *pdev,
dev_err(&pdev->dev, "%s: call to scsi_host_alloc failed!\n",
__func__);
rc = -ENOMEM;
scsi_host_put(cfg->host);
goto out;
}