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| author |   Tony Krowiak <akrowiak@linux.ibm.com> | 2022-07-06 17:43:29 -0400 |
|---|---|---|
| committer |   Alexander Gordeev <agordeev@linux.ibm.com> | 2022-07-15 07:07:36 +0200 |
| commit | 2f23256c0ea20627c91ea2d468cda945f68c3395 (patch) | |
| tree | f5ea67577ac09a5c31fbe5ee7d3fa605de9cae83 /drivers/s390/crypto | |
| parent | s390/nospec: remove unneeded header includes (diff) | |
| download | linux-dev-2f23256c0ea20627c91ea2d468cda945f68c3395.tar.xz linux-dev-2f23256c0ea20627c91ea2d468cda945f68c3395.zip | |
s390/ap: fix error handling in __verify_queue_reservations()
The AP bus's __verify_queue_reservations function increments the ref count
for the device driver passed in as a parameter, but fails to decrement it
before returning control to the caller. This will prevents any subsequent
removal of the module.
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reported-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Fixes: 4f8206b88286 ("s390/ap: driver callback to indicate resource in use")
Link: https://lore.kernel.org/r/20220706222619.602094-1-akrowiak@linux.ibm.com
Cc: stable@vger.kernel.org
[agordeev@linux.ibm.com fixed description, added Fixes and Link]
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'drivers/s390/crypto')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 5c13d2079d96..0a9045b49c50 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1435,7 +1435,7 @@ static int __verify_queue_reservations(struct device_driver *drv, void *data) if (ap_drv->in_use) { rc = ap_drv->in_use(ap_perms.apm, newaqm); if (rc) - return -EBUSY; + rc = -EBUSY; } /* release the driver's module */ |