AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-01-24 03:19:47 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

staging: kpc2000: added missing clean-up to probe_core_uio.

Browse Source 
On error, probe_core_uio just returned an error without freeing
resources which had previously been allocated.  Added the missing
clean-up code.

Updated TODO.

Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jeremy Sowden 2019-05-15 12:14:36 +01:00 committed by Greg Kroah-Hartman
parent 3809ca58c1
commit abb611d2c2
2 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/staging/kpc2000/TODO
View File

@ -1,7 +1,6 @@
- the kpc_spi driver doesn't seem to let multiple transactions (to different instances of the core) happen in parallel...
- The kpc_i2c driver is a hot mess, it should probably be cleaned up a ton. It functions against current hardware though.
- pcard->card_num in kp2000_pcie_probe() is a global variable and needs atomic / locking / something better.
- probe_core_uio() probably needs error handling
- the loop in kp2000_probe_cores() that uses probe_core_uio() also probably needs error handling
- would be nice if the AIO fileops in kpc_dma could be made to work
- probably want to add a CONFIG_ option to control compilation of the AIO functions

3
drivers/staging/kpc2000/kpc2000/cell_probe.c
View File

@ -295,6 +295,7 @@ static int probe_core_uio(unsigned int core_num, struct kp2000_device *pcard,
kudev->dev = device_create(kpc_uio_class, &pcard->pdev->dev, MKDEV(0,0), kudev, "%s.%d.%d.%d", kudev->uioinfo.name, pcard->card_num, cte.type, kudev->core_num);
if (IS_ERR(kudev->dev)) {
dev_err(&pcard->pdev->dev, "probe_core_uio device_create failed!\n");
kfree(kudev);
return -ENODEV;
}
dev_set_drvdata(kudev->dev, kudev);
@ -302,6 +303,8 @@ static int probe_core_uio(unsigned int core_num, struct kp2000_device *pcard,
rv = uio_register_device(kudev->dev, &kudev->uioinfo);
if (rv){
dev_err(&pcard->pdev->dev, "probe_core_uio failed uio_register_device: %d\n", rv);
put_device(kudev->dev);
kfree(kudev);
return rv;
}